var matiere = new Array; //nouveau tableau
    matiere[0] = new Array("1", "0");
    matiere[1] = new Array("2", "1");
    matiere[2] = new Array("3", "2");
    matiere[3] = new Array("4", "3");
    matiere[4] = new Array("5", "4");
    matiere[5] = new Array("6", "5");

    // period1.1
    var period=new Array;
    period["1"] = new Array;
    period["1"][0] = new Array("7", "7 дни");
    period["1"][1] = new Array("10", "10 дни");
    period["1"][2] = new Array("1", "1 месец");
    period["1"][3] = new Array("3", "3 месеца");
    period["1"][4] = new Array("6", "6 месеца");
    period["1"][5] = new Array("12", "12 месеца");
    period["1"][6] = new Array("18", "18 месеца");
    period["1"][7] = new Array("24", "24 месеца");
    period["1"][8] = new Array("30", "30 месеца");
    period["1"][9] = new Array("36", "36 месеца");


    //period2
    period["2"]=new Array;
    period["2"][0] = new Array("12", "12 месеца");
    period["2"][1] = new Array("18", "18 месеца");
    period["2"][2] = new Array("24", "24 месеца");
    period["2"][3] = new Array("30", "30 месеца");
    period["2"][4] = new Array("36", "36 месеца");

    //period3
    period["3"]=new Array;
    period["3"][0] = new Array("1", "1 месец");
    period["3"][1] = new Array("3", "3 месеца");
    period["3"][2] = new Array("6", "6 месеца");
    period["3"][3] = new Array("12", "12 месеца");



    //period4
    period["4"] = new Array;
    period["4"][0] = new Array("6", "6 месеца");
    period["4"][1] = new Array("12", "12 месеца");

    //period5
    period["5"] = new Array;
    period["5"][0] = new Array("6", "6 месеца");
    period["5"][1] = new Array("12", "12 месеца");

    //period6
    period["6"] = new Array;
    period["6"][0] = new Array("6", "6 месеца");
    period["6"][1] = new Array("12", "12 месеца");


    //initialize fields "interest", "benefit", "f_account" and "currency_txt"
    function met_blanc() {
        document.forms.Form1.elements.interest.value="";
        document.forms.Form1.elements.benefit.value= "";
        document.forms.Form1.elements.f_account.value="";
        document.forms.Form1.elements.currency_txt.value="";

    }

    function filltheselect(liste, choix) {
        choice_currency=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;
        choice_matiere=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;

        switch (liste)

        {

            case "list_matiere":

                raz("listeville");
                //si la monnaie est en pound et matiere 1 alors
                deb = 0;
                deb_2 = period[choix].length;
                if ((choice_currency=="GBP")&&(choice_matiere=="1")){ deb=2; }
                if ((choice_currency=="CHF")&&(choice_matiere=="1")){ deb=2; }
                if ((choice_currency=="USD")&&(choice_matiere=="1")){ deb_2=6; }
                if ((choice_currency=="GBP")&&(choice_matiere=="1")){ deb_2=6; }
                if ((choice_currency=="CHF")&&(choice_matiere=="1")){ deb_2=6; }

                if ((choice_currency=="GBP")&&(choice_matiere=="2")){ deb_2=0; }
                if ((choice_currency=="CHF")&&(choice_matiere=="2")){ deb_2=0; }

                if ((choice_currency=="GBP")&&(choice_matiere=="3")){ deb_2=0; }
                if ((choice_currency=="CHF")&&(choice_matiere=="3")){ deb_2=0; }

                if ((choice_currency=="USD")&&(choice_matiere=="4")){ deb_2=0; }
                if ((choice_currency=="GBP")&&(choice_matiere=="4")){ deb_2=0; }
                if ((choice_currency=="CHF")&&(choice_matiere=="4")){ deb_2=0; }

                if ((choice_currency=="USD")&&(choice_matiere=="5")){ deb_2=0; }
                if ((choice_currency=="GBP")&&(choice_matiere=="5")){ deb_2=0; }
                if ((choice_currency=="CHF")&&(choice_matiere=="5")){ deb_2=0; }

                if ((choice_currency=="USD")&&(choice_matiere=="6")){ deb_2=0; }
                if ((choice_currency=="GBP")&&(choice_matiere=="6")){ deb_2=0; }
                if ((choice_currency=="CHF")&&(choice_matiere=="6")){ deb_2=0; }

                for (i=deb; i<deb_2; i++)
    
                {
    
                    new_option = new Option(period[choix][i][1],period[choix][i][0]);
    	
                    document.forms.Form1.elements["listeville"].options[document.forms.Form1.elements["listeville"].length]=new_option;
    
                }
                var chaine="<FORM name='Form1'>";
                chaine+="<TD ALIGN='CENTER' CLASS='n'>";
                chaine+="<P>period<BR><select name='listeville' onChange=''>";
    
    
                for (i=0; i<period["1"].length; i++)
                    chaine+="<option value='" +period['1'][i][0]+ "'>" +period['1'][i][1]+"</OPTION>";
                chaine+="</select></P></TD>";
                chaine+="</FORM>";
                //document.write(chaine);
                break;
        }
    }

	
    function raz(liste)

    {l=document.forms.Form1.elements[liste].length;

        for (i=l; i>=0; i--)

            document.forms.Form1.elements[liste].options[i]=null;

    }

    //check the field "account" is not empty
    function validate(){
        // si la valeur du champ account est non vide
        if(document.forms.Form1.elements.account.value != "") {
            return true;
        }
        else {
            //if the field is empty --> messagebox
            alert("Попълнете полето 'Сума'!");
            met_blanc();
            return false;
        }
    }


    //check the minimum asked for the account
    function comparison_min(nb, mini, choice_matiere, t_account){
        if(choice_matiere==nb){
            if (t_account<mini){
                alert ( "Сумата трябва да бъде > "+mini+" !");
                met_blanc();
                evaluation=false;
            }
        }
    }

    //check the bracket asked for the account
    function comparison_fourchette(nb, mini, maxi, choice_matiere, t_account){
        if(choice_matiere==nb){
            if ((t_account<mini)|| (t_account>maxi)){
                alert ( " Сумата трябва да бъде > "+mini+"  < "+maxi+" !");
                met_blanc();
                evaluation=false;
            }
        }
    }

    //check the maximum asked for the account
    function comparison_max(nb, maxi, choice_matiere, t_account){
        if(choice_matiere==nb){
            if (t_account>maxi){
                alert ( "Сумата трябва да бъде < "+maxi+" !");
                met_blanc();
                evaluation=false;
            }
        }
    }

    //check the account
    function evaluate(t_account, choice_matiere, choice_currency) {
        evaluation=true;
        if(choice_matiere=="1"){
            if(choice_currency=="BGN"){
                if (t_account<30){
                    alert ( "Сумата трябва да бъде >30 !");
                    met_blanc();
                    evaluation=false;
                }
            }
            else{
                if (t_account<100) {
                    alert ( "Сумата трябва да бъде >100 !");
                    met_blanc();
                    evaluation=false;
                }
            }
        }

        comparison_min(2, 5000, choice_matiere, t_account);
        comparison_min(3, 100, choice_matiere, t_account);
        comparison_fourchette(4, 10000, 19999, choice_matiere, t_account);
        comparison_fourchette(5, 20000, 49999, choice_matiere, t_account);
        comparison_min(6, 50000, choice_matiere, t_account);
        return evaluation;
    }



    function calculate() {

        var evaluation;

        //tables with the interest rate and the period
        ////////////////////////////////BGN///////////////////////
        var tablebg1 = new Array;
        for(var i=0; i<=36; i++){
            tablebg1[i]=0;
        }

        var tablebg2 = new Array;
        for(var i=0; i<=36; i++){
            tablebg2[i]=0;
        }

        var tablebg3 = new Array;
        for(var i=0; i<=36; i++){
            tablebg3[i]=0;
        }

        var tablebg4 = new Array;
        for(var i=0; i<=36; i++){
            tablebg4[i]=0;
        }

        var tablebg5 = new Array;
        for(var i=0; i<=36; i++){
            tablebg5[i]=0;
        }

        var tablebg6 = new Array;
        for(var i=0; i<=36; i++){
            tablebg6[i]=0;
        }

        var list_interestbg=new Array;
        list_interestbg[1]=tablebg1; list_interestbg[2]=tablebg2; list_interestbg[3]=tablebg3; list_interestbg[4]=tablebg4; list_interestbg[5]=tablebg5; list_interestbg[6]=tablebg6;

        ////////////////////////////euros///////////////////////
        var tableeuros1 = new Array;
        for(var i=0; i<=36; i++){
            tableeuros1[i]=0;
        }

        var tableeuros2 = new Array;
        for(var i=0; i<=36; i++){
            tableeuros2[i]=0;
        }

        var tableeuros3 = new Array;
        for(var i=0; i<=36; i++){
            tableeuros3[i]=0;
        }

        var tableeuros4 = new Array;
        for(var i=0; i<=36; i++){
            tableeuros4[i]=0;
        }

        var tableeuros5 = new Array;
        for(var i=0; i<=36; i++){
            tableeuros5[i]=0;
        }

        var tableeuros6 = new Array;
        for(var i=0; i<=36; i++){
            tableeuros6[i]=0;
        }

        var list_interesteuros=new Array;
        list_interesteuros[1]=tableeuros1; list_interesteuros[2]=tableeuros2; list_interesteuros[3]=tableeuros3; list_interesteuros[4]=tableeuros4; list_interesteuros[5]=tableeuros5; list_interesteuros[6]=tableeuros6;
        ////////////////////////////usd////////////////////////////////////
        var tableusd1 = new Array;
        for(var i=0; i<=36; i++){
            tableusd1[i]=0;
        }

        var tableusd2 = new Array;
        for(var i=0; i<=36; i++){
            tableusd2[i]=0;
        }

        var tableusd3 = new Array;
        for(var i=0; i<=36; i++){
            tableusd3[i]=0;
        }

        var tableusd4 = new Array;
        for(var i=0; i<=36; i++){
            tableusd4[i]=0;
        }


        var tableusd5 = new Array;
        for(var i=0; i<=36; i++){
            tableusd5[i]=0;
        }

        var tableusd6 = new Array;
        for(var i=0; i<=36; i++){
            tableusd6[i]=0;
        }


        var list_interestusd=new Array;
        list_interestusd[1]=tableusd1; list_interestusd[2]=tableusd2; list_interestusd[3]=tableusd3; list_interestusd[4]=tableusd4; list_interestusd[5]=tableusd5; list_interestusd[6]=tableusd6;


        ////////////////////////////GBP////////////////////////////////////
        var tablegbp1 = new Array;
        for(var i=0; i<=36; i++){
            tablegbp1[i]=0;
        }

        var list_interestgbp=new Array;
        list_interestgbp[1]=tablegbp1; 

        ////////////////////////////CHF////////////////////////////////////
        var tablechf1 = new Array;
        for(var i=0; i<=36; i++){
            tablechf1[i]=0;
        }

        var list_interestchf=new Array;
        list_interestchf[1]=tablechf1;
   
        
tablebg1[7]=0;
tablebg1[10]=0;
tablebg1[1]=0.01;
tablebg1[3]=0.015;
tablebg1[6]=0.02;
tablebg1[12]=0.025;
tablebg1[18]=0;
tablebg1[24]=0.03;
tablebg1[30]=0;
tablebg1[36]=0.035;
tablebg2[7]=0;
tablebg2[10]=0;
tablebg2[1]=0;
tablebg2[3]=0;
tablebg2[6]=0;
tablebg2[12]=0;
tablebg2[18]=0;
tablebg2[24]=0;
tablebg2[30]=0;
tablebg2[36]=0;
tablebg3[7]=0;
tablebg3[10]=0;
tablebg3[1]=0.015;
tablebg3[3]=0.02;
tablebg3[6]=0.025;
tablebg3[12]=0.03;
tablebg3[18]=0;
tablebg3[24]=0;
tablebg3[30]=0;
tablebg3[36]=0;
tablebg4[7]=0;
tablebg4[10]=0;
tablebg4[1]=0;
tablebg4[3]=0;
tablebg4[6]=0;
tablebg4[12]=0;
tablebg4[18]=0;
tablebg4[24]=0;
tablebg4[30]=0;
tablebg4[36]=0;
tablebg5[7]=0;
tablebg5[10]=0;
tablebg5[1]=0;
tablebg5[3]=0;
tablebg5[6]=0.2;
tablebg5[12]=0.35;
tablebg5[18]=0;
tablebg5[24]=0;
tablebg5[30]=0;
tablebg5[36]=0;
tablebg6[7]=0;
tablebg6[10]=0;
tablebg6[1]=0;
tablebg6[3]=0;
tablebg6[6]=0.3;
tablebg6[12]=0.4;
tablebg6[18]=0;
tablebg6[24]=0;
tablebg6[30]=0;
tablebg6[36]=0;
tablechf1[7]=0;
tablechf1[10]=0;
tablechf1[1]=0.01;
tablechf1[3]=0.01;
tablechf1[6]=0.01;
tablechf1[12]=0.01;
tablechf1[18]=0;
tablechf1[24]=0;
tablechf1[30]=0;
tablechf1[36]=0;
tableeuros1[7]=0;
tableeuros1[10]=0;
tableeuros1[1]=0.01;
tableeuros1[3]=0.015;
tableeuros1[6]=0.02;
tableeuros1[12]=0.025;
tableeuros1[18]=0;
tableeuros1[24]=0.03;
tableeuros1[30]=0;
tableeuros1[36]=0.035;
tableeuros2[7]=0;
tableeuros2[10]=0;
tableeuros2[1]=0;
tableeuros2[3]=0;
tableeuros2[6]=0;
tableeuros2[12]=0;
tableeuros2[18]=0;
tableeuros2[24]=0;
tableeuros2[30]=0;
tableeuros2[36]=0;
tableeuros3[7]=0;
tableeuros3[10]=0;
tableeuros3[1]=0.015;
tableeuros3[3]=0.02;
tableeuros3[6]=0.025;
tableeuros3[12]=0.03;
tableeuros3[18]=0;
tableeuros3[24]=0;
tableeuros3[30]=0;
tableeuros3[36]=0;
tableeuros4[7]=0;
tableeuros4[10]=0;
tableeuros4[1]=0;
tableeuros4[3]=0;
tableeuros4[6]=0;
tableeuros4[12]=0;
tableeuros4[18]=0;
tableeuros4[24]=0;
tableeuros4[30]=0;
tableeuros4[36]=0;
tableeuros5[7]=0;
tableeuros5[10]=0;
tableeuros5[1]=0;
tableeuros5[3]=0;
tableeuros5[6]=0.2;
tableeuros5[12]=0.35;
tableeuros5[18]=0;
tableeuros5[24]=0;
tableeuros5[30]=0;
tableeuros5[36]=0;
tableeuros6[7]=0;
tableeuros6[10]=0;
tableeuros6[1]=0;
tableeuros6[3]=0;
tableeuros6[6]=0.3;
tableeuros6[12]=0.4;
tableeuros6[18]=0;
tableeuros6[24]=0;
tableeuros6[30]=0;
tableeuros6[36]=0;
tablegbp1[7]=0;
tablegbp1[10]=0;
tablegbp1[1]=0.01;
tablegbp1[3]=0.01;
tablegbp1[6]=0.01;
tablegbp1[12]=0.01;
tablegbp1[18]=0;
tablegbp1[24]=0;
tablegbp1[30]=0;
tablegbp1[36]=0;
tableusd1[7]=0;
tableusd1[10]=0;
tableusd1[1]=0.015;
tableusd1[3]=0.015;
tableusd1[6]=0.02;
tableusd1[12]=0.03;
tableusd1[18]=0;
tableusd1[24]=0.035;
tableusd1[30]=0;
tableusd1[36]=0.04;
tableusd2[7]=0;
tableusd2[10]=0;
tableusd2[1]=0;
tableusd2[3]=0;
tableusd2[6]=0;
tableusd2[12]=0;
tableusd2[18]=0;
tableusd2[24]=0;
tableusd2[30]=0;
tableusd2[36]=0;
tableusd3[7]=0;
tableusd3[10]=0;
tableusd3[1]=0.02;
tableusd3[3]=0.02;
tableusd3[6]=0.025;
tableusd3[12]=0.035;
tableusd3[18]=0;
tableusd3[24]=0;
tableusd3[30]=0;
tableusd3[36]=0;   

        var test= validate();
        if (test){
	
            t_account=document.forms.Form1.elements.account.value;
            choice_matiere=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;
            choice_currency=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;
	    	
            evaluation=evaluate(t_account, choice_matiere, choice_currency);
	
            if (evaluation){
	
                choice_per=document.forms.Form1.elements.listeville.options[document.forms.Form1.elements.listeville.selectedIndex].value;
                // alert("choix mat "+ choice_matiere+" choix periode "+choice_per+" choix devise "+choice_currency);

                switch (choice_currency){
                    case  "BGN" : document.forms.Form1.elements.interest.value=list_interestbg[choice_matiere][choice_per];
                        if ((choice_per==10)||(choice_per==7)){
                            final_account=Math.round((((list_interestbg[choice_matiere][choice_per])/(100*365))*t_account*choice_per+eval(t_account))*100)/100;
                        }else{
                            final_account=Math.round(((((list_interestbg[choice_matiere][choice_per])/(100*360))*t_account*30*choice_per)+eval(t_account))*100)/100;
                        }
                        break;
                    case "EUR" : document.forms.Form1.elements.interest.value=list_interesteuros[choice_matiere][choice_per];
                        if ((choice_per==10)||(choice_per==7)){
                            final_account=Math.round((((list_interesteuros[choice_matiere][choice_per])/(100*365))*t_account*choice_per+eval(t_account))*100)/100;
                        }else{
                            final_account=Math.round(((((list_interesteuros[choice_matiere][choice_per])/(100*360))*t_account*30*choice_per)+eval(t_account))*100)/100;
                        }
                        break;
                    case "USD" : document.forms.Form1.elements.interest.value=list_interestusd[choice_matiere][choice_per];
                        if ((choice_per==10)||(choice_per==7)){
                            final_account=Math.round((((list_interestusd[choice_matiere][choice_per])/(100*365))*t_account*choice_per+eval(t_account))*100)/100;
                        }else{
                            final_account=Math.round(((((list_interestusd[choice_matiere][choice_per])/(100*360))*t_account*30*choice_per)+eval(t_account))*100)/100;
                        }
                        break;
                    case "GBP" : document.forms.Form1.elements.interest.value=list_interestgbp[choice_matiere][choice_per];
                        if ((choice_per==10)||(choice_per==7)){
                            final_account=Math.round((((list_interestgbp[choice_matiere][choice_per])/(100*365))*t_account*choice_per+eval(t_account))*100)/100;
                        }else{
                            final_account=Math.round(((((list_interestgbp[choice_matiere][choice_per])/(100*360))*t_account*30*choice_per)+eval(t_account))*100)/100;
                        }
                        break;
                    case "CHF" : document.forms.Form1.elements.interest.value=list_interestchf[choice_matiere][choice_per];
                        if ((choice_per==10)||(choice_per==7)){
                            final_account=Math.round((((list_interestchf[choice_matiere][choice_per])/(100*365))*t_account*choice_per+eval(t_account))*100)/100;
                        }else{
                            final_account=Math.round(((((list_interestchf[choice_matiere][choice_per])/(100*360))*t_account*30*choice_per)+eval(t_account))*100)/100;
                        }
                        break;
                }
        	
 		
 	 	
                document.forms.Form1.elements.f_account.value=final_account;
                document.forms.Form1.elements.benefit.value= Math.round((eval(final_account)-eval(t_account))*100)/100;
                document.forms.Form1.elements.currency_txt.value=choice_currency;
            }
        }
    }




    var Today = new Date();
    var TodaysYear = Today.getFullYear();
    var TodaysMonth = 1+Today.getMonth() ;
    var TodaysDate = Today.getDate();
    var TodaysDay = Today.getDay() ;
    var MonthLength = new Array("Mois_longueur_vide",31,29,31,30,31,30,31,31,30,31,30,31);

    // values from database
    var lastDay="30";
    var lastMonth="04";
    var lastYear="2000";
    var tauxBuy;
    var tauxSell;
    /*var tauxBuy=1.96;
    var tauxSell=4;
    var tauxBuy_opt1=1.96;
    var tauxBuy_opt2=2;
    var tauxSell_opt1=4;
    var tauxSell_opt2=5;*/

    ///////************************* show or hide warning messages  **************************/////////////

    function cache(object){
        if (document.layers && document.layers[object])
        {
            document.layers[object].visibility = 'hidden';
        }
        else if (document.all)
        {
            document.all[object].style.visibility = 'hidden';
        }
        else if (document.getElementById)
        {
            document.getElementById(object).style.visibility = 'hidden';
        }

    }


    function montre(object){
        if (document.layers && document.layers[object])
        {
            document.layers[object].visibility = 'visible';
        }
        else if (document.all)
        {
            document.all[object].style.visibility = 'visible';
            document.all[object].style.zIndex = 100;
        }
        else if (document.getElementById)
        {
            document.getElementById(object).style.visibility = 'visible';
            document.getElementById(object).style.zIndex = 100;
        }
    }

    function change_text(object, text){
        if (document.layers && document.layers[object])
        {
            document.layers[object].innerHTML = text;
        }
        else if (document.all)
        {
            document.all[object].innerHTML = text;
        }
        else if (document.getElementById)
        {
            document.getElementById(object).innerHTML = text;
        }
    }

    ////////******************  DATE  ************************//////////////
    // automatic date format dd.mm.yyyy
    function masqueSaisieDate(obj) {
        var ch;
        var ch_gauche, ch_droite;
        ch = obj.value;
        ch.toString();

        if ( ( (ch.slice(2,3)) != (".") ) && (ch.length >= 3) ){
            ch_gauche = ch.slice(0,2);
            ch_droite = ch.slice(2);
            obj.value = ch_gauche + "." + ch_droite;
        }
        if ( ( (ch.slice(5,6)) != (".") ) && (ch.length >= 6) ){
            ch_gauche = ch.slice(0,5);
            ch_droite = ch.slice(5);
            obj.value = ch_gauche + "." + ch_droite;
        }
        return;
    }

    //load the current date in the form
    function load_date(){
        if (TodaysMonth<10){
            TodaysMonth="0"+(1+Today.getMonth()) ;
        }
        if (TodaysDate<10){
            TodaysDate="0"+Today.getDate();
        }
        chaineDate=TodaysDate+"."+TodaysMonth+"."+TodaysYear;
        document.forms.Form1.elements.dateSB.value = chaineDate;
    }

    /* Teste une annee pour determiner si elle est bissextile ou pas*/

    function CheckLeap(yy) {
        if ((yy % 100 == 0 && yy % 400 == 0) || (yy % 4 == 0)) {
            //alert("bi");
            return 29;
        }
        else {
            //alert("pas bi");
            return 28;
        }
    }

    /*build error message for dates */
    function msgDate(){
        if ((lastMonth<10)){
            if((lastMonth.substr(0,1)!="0")){
                lastMonth="0"+lastMonth;
            }
        }

        if ((lastDay<10)){
            if ((lastDay.substr(0,1)!="0")){
                lastDay="0"+lastDay;
            }
        }
        HTMLCode="<span id=\"msgDate1\" style='visibility: hidden; font-size=12px;'>";
        HTMLCode+="Датата трябва да бъде "+ lastDay+"."+lastMonth+"."+lastYear+" и "+ TodaysDate+"."+TodaysMonth+"."+TodaysYear;
        HTMLCode+="</span>";
        DateMessage.innerHTML = HTMLCode;
    }


    /* check the date  */
    function checkDate(){
        //chaine.substr(nb_debut,taille)

        msgDate();
        cache("msgDate1");
        dateSaisie=document.forms.Form1.elements.dateSB.value;
        if((dateSaisie.substr(1,1)==".")||(dateSaisie.substr(3,1)==".")||(dateSaisie.substr(4,1)==".")||(dateSaisie.substr(6,1)==".")){
            alert("date format");
        }else{
            jourSaisi=dateSaisie.substr(0,2);
            moisSaisi=dateSaisie.substr(3,2);
            anneeSaisie=dateSaisie.substr(6,4);
            nb_currentdate=((TodaysYear*10000) + (TodaysMonth*100) + TodaysDate);
            nb_written=((anneeSaisie *10000) + (moisSaisi *100)+ eval(jourSaisi));
            anteDate(nb_written);
            postDate(nb_written);
            MonthLength[2]=CheckLeap(anneeSaisie);

            if (moisSaisi.substr(0,1)==0){
                moisSaisi_temp=moisSaisi.substr(1,1);
            }


            //test la coherence des dates
            //alert(MonthLength[moisSaisi_temp]);
            if (MonthLength[moisSaisi_temp] < jourSaisi) /* on verifie si la date est coherente*/
            {
                alert("Няма" + jourSaisi + " дни и месец "+moisSaisi  + " но " + MonthLength[moisSaisi_temp] + ". \nБихте ли избрали друга дата!");
                //load_date();
            }


        }
    }


    // test si la date est anterieure a la date du jour
    function postDate(nb_saisi){

        //alert((anneeSaisie *10000)+" "+(moisSaisi *100) );
        //alert(nb_currentdate +" c "+nb);
        if ((nb_saisi) > nb_currentdate){
            montre("msgDate1");
            // load_date();
            document.forms.Form1.elements.dateSB.focus();

        }
    }

    //verifie si les dates sont coherentes
    function anteDate(nb_saisi){
        //the last date in database

        if (((lastYear * 10000) + (lastMonth * 100) + eval(lastDay)) > nb_saisi){
            montre("msgDate1");
            // load_date();
            document.forms.Form1.elements.dateSB.focus();
        }
    }

    //verifie que la date saisie est superieure a la derniere reference dans la base de donnees
    //check the date is more older the last date in database
    function lastDate(){

    }

    /////////////**************** EVENTS *********************/////////////
    /* */
    function change_opt2(){
        val_buy=document.forms.Form1.elements.option2.options[document.forms.Form1.elements.option1.selectedIndex].value;
        /* if (val_buy=="1"){
            tauxBuy=tauxBuy_opt1;
           }else{
            tauxBuy=tauxBuy_opt2;
           }*/
    }


    function change_opt1(){
        val_sell=document.forms.Form1.elements.option1.options[document.forms.Form1.elements.option2.selectedIndex].value;
        /*   if (val_sell=="1"){
            tauxSell=tauxSell_opt1;
           }else{
             tauxSell=tauxSell_opt2;
           }*/
    }




    function change_interest(){

    }
    ////////////////////////********************** Currency ***********************////////////////

    function check_currency(){
        val1_currency=document.forms.Form1.elements.list_title1.options[document.forms.Form1.elements.list_title1.selectedIndex].value;
        val2_currency=document.forms.Form1.elements.list_title3.options[document.forms.Form1.elements.list_title3.selectedIndex].value;
        val3_currency=document.forms.Form1.elements.list_title2_1.options[document.forms.Form1.elements.list_title2_1.selectedIndex].value;
        val4_currency=document.forms.Form1.elements.list_title2_3.options[document.forms.Form1.elements.list_title2_3.selectedIndex].value;
        if(val1_currency==val2_currency){
            alert("Не може да се преобразува "+val1_currency+" --> "+val2_currency+"!");
        }
        else if(val3_currency==val4_currency){
            alert("Не може да се преобразува "+val3_currency+" --> "+val4_currency+"!");
        }
    }

    function fixe_interest(currency_1, currency_2){

        switch(currency_1){
            case "BGN": if(currency_2=="EUR"){
                taux=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
            }
                if(currency_2=="USD"){
                    taux=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                }
                if(currency_2=="CHF"){
                    taux=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                }
                if(currency_2=="GBP"){
                    taux=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                }
                break;
            case "EUR":
                if(currency_2=="BGN"){
                    taux=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                }
                if(currency_2=="USD"){
                    taux=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="CHF"){
                    taux=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="GBP"){
                    taux=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    taux=taux*tauxtemp;
                }
                break;
            case "USD":
                if(currency_2=="EUR"){
                    taux=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="BGN"){
                    taux=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                }
                if(currency_2=="CHF"){
                    taux=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="GBP"){
                    taux=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    taux=taux*tauxtemp;
                }
                break;
            case "CHF":
                if(currency_2=="EUR"){
                    taux=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="USD"){
                    taux=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="BGN"){
                    taux=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                }
                if(currency_2=="GBP"){
                    taux=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    taux=taux*tauxtemp;
                }
                break;	
            case "GBP":
                if(currency_2=="EUR"){
                    taux=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="USD"){
                    taux=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="CHF"){
                    taux=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    tauxtemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    taux=taux*tauxtemp;
                }
                if(currency_2=="BGN"){
                    taux=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                }
                break;	
	      	
        }
	
    }


    function Calculate_2(){

        check_currency();

        //Calculs
        //accounts written by the user
        accountBuy= document.forms.Form1.elements.c_title3.value ;
        accountSell=document.forms.Form1.elements.c_title1.value;

        val_buy=document.forms.Form1.elements.option2.options[document.forms.Form1.elements.option2.selectedIndex].value;
        val_sell=document.forms.Form1.elements.option1.options[document.forms.Form1.elements.option1.selectedIndex].value;
        //currency sold
        currency_sell_1=document.forms.Form1.elements.list_title1.options[document.forms.Form1.elements.list_title1.selectedIndex].value;
        currency_sell_2=document.forms.Form1.elements.list_title3.options[document.forms.Form1.elements.list_title3.selectedIndex].value;

        //curency bought
        currency_buy_1=document.forms.Form1.elements.list_title2_1.options[document.forms.Form1.elements.list_title2_1.selectedIndex].value;
        currency_buy_2=document.forms.Form1.elements.list_title2_3.options[document.forms.Form1.elements.list_title2_3.selectedIndex].value;

        switch (val_buy){
            case "1":   
                switch(currency_buy_1){
                case "BGN": 
                    if(currency_buy_2=="EUR"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.EUR_buy.value);
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.USD_buy.value);
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.CHF_buy.value);
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.GBP_buy.value);
                    }
                    break;
                case "EUR":
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_buy.value);
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.CHF_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.GBP_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    break;
                case "USD":
                    if(currency_buy_2=="EUR"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.EUR_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_buy.value);
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.CHF_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.GBP_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    break;
                case "CHF":
                    if(currency_buy_2=="EUR"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.EUR_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_buy.value);
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    break;	
                case "GBP":
                    if(currency_buy_2=="EUR"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.EUR_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_buy.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_buy.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_buy.value);
                    }
                    break;	
	      	   
            }
   	
                break;
            case "2":   switch(currency_buy_1){
                case "BGN": if(currency_buy_2=="EUR"){
                    tauxBuy=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                }
                    if(currency_buy_2=="USD"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    }
                    break;
                case "EUR":
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    break;
                case "USD":
                    if(currency_buy_2=="EUR"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    break;
                case "CHF":
                    if(currency_buy_2=="EUR"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    }
                    if(currency_buy_2=="GBP"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    break;	
                case "GBP":
                    if(currency_buy_2=="EUR"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="USD"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="CHF"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxBuytemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxBuy=tauxBuy*tauxBuytemp;
                    }
                    if(currency_buy_2=="BGN"){
                        tauxBuy=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    }
                    break;	
	      	   
            }
   	
                break;
        }

        switch (val_sell){
            case "1":   
                switch(currency_sell_1){
                case "BGN":  
                    if(currency_sell_2=="EUR"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.EUR_sell.value);
                    }
                    if(currency_sell_2=="USD"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.USD_sell.value);
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.CHF_sell.value);
                    }
                    if(currency_sell_2=="GBP"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.GBP_sell.value);
                    }
                    break;
                case "EUR": 
                    if(currency_sell_2=="GBP"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.GBP_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="USD"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.USD_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.CHF_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_sell.value);
                    }
                    break;
                case "USD":  if(currency_sell_2=="EUR"){
                    tauxSell=parseFloat(document.forms.Form1.elements.USD_sell.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.EUR_sell.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="GBP"){
                        tauxSell=parseFloat(document.forms.Form1.elements.USD_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.GBP_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=parseFloat(document.forms.Form1.elements.USD_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.CHF_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.USD_sell.value);
                    }
                    break;
                case "CHF":  if(currency_sell_2=="EUR"){
                    tauxSell=parseFloat(document.forms.Form1.elements.CHF_sell.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.EUR_sell.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="USD"){
                        tauxSell=parseFloat(document.forms.Form1.elements.CHF_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.USD_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="GBP"){
                        tauxSell=parseFloat(document.forms.Form1.elements.CHF_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.GBP_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.CHF_sell.value);
  	
                    }
                    break;	
                case "GBP":  if(currency_sell_2=="EUR"){
                    tauxSell=parseFloat(document.forms.Form1.elements.GBP_sell.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.EUR_sell.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="USD"){
                        tauxSell=parseFloat(document.forms.Form1.elements.GBP_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.USD_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=parseFloat(document.forms.Form1.elements.GBP_sell.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.CHF_sell.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.GBP_sell.value);
                    }
                    break;
            }
                break;
            case "2":   switch(currency_sell_1){
                case "BGN":  if(currency_sell_2=="EUR"){
                    tauxSell=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                }
                    if(currency_sell_2=="USD"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    }
                    if(currency_sell_2=="GBP"){
                        tauxSell=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    }
                    break;
                case "EUR": if(currency_sell_2=="GBP"){
                    tauxSell=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="USD"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    }
                    break;
                case "USD":  if(currency_sell_2=="EUR"){
                    tauxSell=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="GBP"){
                        tauxSell=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.USD_bnb.value);
                    }
                    break;
                case "CHF":  if(currency_sell_2=="EUR"){
                    tauxSell=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="USD"){
                        tauxSell=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="GBP"){
                        tauxSell=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.CHF_bnb.value);
  	
                    }
                    break;	
                case "GBP":  if(currency_sell_2=="EUR"){
                    tauxSell=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    tauxSelltemp=1/parseFloat(document.forms.Form1.elements.EUR_bnb.value);
                    tauxSell=tauxSell*tauxSelltemp;
                }
                    if(currency_sell_2=="USD"){
                        tauxSell=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.USD_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="CHF"){
                        tauxSell=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                        tauxSelltemp=1/parseFloat(document.forms.Form1.elements.CHF_bnb.value);
                        tauxSell=tauxSell*tauxSelltemp;
                    }
                    if(currency_sell_2=="BGN"){
                        tauxSell=parseFloat(document.forms.Form1.elements.GBP_bnb.value);
                    }
                    break;
            }
                break;
        }

        resultBuy=accountBuy*tauxBuy;
        resultSell=accountSell*tauxSell;

        if(accountBuy!=""){
            document.forms.Form1.elements.c_title4.value=Math.round(resultBuy*100)/100;
        }

        if(accountSell!=""){
            document.forms.Form1.elements.c_title2.value=Math.round(resultSell*100)/100;
        }
    }





    var matiere = new Array; //new table
    matiere[0] = new Array("1", "0");
    matiere[1] = new Array("2", "1");
    matiere[2] = new Array("3", "2");
    matiere[3] = new Array("4", "3");
    matiere[4] = new Array("5", "4");


    // period1
    var mat=new Array;
    mat["1"] = new Array;
    mat["1"][0] = new Array("BGN", "  BGN  ");
    mat["1"][1] = new Array("EUR", "  EUR  ");


    //period2
    mat["2"]=new Array;
    mat["2"][0] = new Array("BGN", "  BGN  ");
    mat["2"][1] = new Array("EUR", "  EUR  ");


    //period3
    mat["3"]=new Array;
    mat["3"][0] = new Array("EUR", "  EUR  ");


    //period4
    mat["4"] = new Array;
    mat["4"][0] = new Array("BGN", "  BGN  ");
    mat["4"][1] = new Array("EUR", "  EUR  ");


    //period5
    mat["5"] = new Array;
    mat["5"][0] = new Array("EUR", "  EUR  ");

    //period6
    mat["6"] = new Array;
    mat["6"][0] = new Array("BGN", "  BGN  ");

    //period4
    mat["7"] = new Array;
    mat["7"][0] = new Array("BGN", "  BGN  ");
    mat["7"][1] = new Array("EUR", "  EUR  ");


    var gar=new Array;
    gar["1"] = new Array;
    gar["1"][0] = new Array("0", "Поръчителство при месечен превод по сметка в банката");
    gar["1"][1] = new Array("1", "Поръчителство при вноска на каса");
    gar["1"][2] = new Array("2", "Залог в/у вземане на пар.средства и/или ДЦК");
    gar["1"][3] = new Array("3", "Ипотека, с доказване на мин. остатъчен доход");
    gar["1"][4] = new Array("4", "Ипотека, без доказване на мин. остататъчен доход");


    gar["2"]=new Array;
    gar["2"][0] = new Array("0", "Ипотека, с док.на мин.остат.доход");
    gar["2"][1] = new Array("1", "Ипотека, без док.на мин.остат.доход");


    gar["3"]=new Array;
    gar["3"][0] = new Array("0", "Ипотека, с док.на мин.остат.доход");
    gar["3"][1] = new Array("1", "Ипотека, без док.на мин.остат.доход");


    gar["4"] = new Array;
    gar["4"][0] = new Array("0", "Различно    ");


    gar["5"] = new Array;
    gar["5"][0] = new Array("0", "Ипотека      ");
    gar["5"][1] = new Array("1", "Поръчителство");
    gar["5"][2] = new Array("2", "Залог        ");

    gar["6"] = new Array;
    gar["6"][0] = new Array("0", "Ипотека      ");
    gar["6"][1] = new Array("1", "Поръчителство");

    gar["7"] = new Array;
    gar["7"][0] = new Array("0", "Различно    ");

    //adapts the combobox of currency switch the choice in the first combobox
    function changeCurrency(liste,choix){
        document.forms.Form1.elements.explanation.value="";
        switch (liste){

            case "list_matiere":
                raz("currency");
                for (i=0; i<mat[choix].length; i++)

                {

                    new_option = new Option(mat[choix][i][1],mat[choix][i][0]);
	
                    document.forms.Form1.elements["currency"].options[document.forms.Form1.elements["currency"].length]=new_option;

                }
                var chaine="<FORM name='Form1'>";
                chaine+="<TD ALIGN='CENTER' CLASS='n'>";
                chaine+="<P>period<BR><select name='currency' onChange=''>";


                for (i=0; i<mat["1"].length; i++)
                    chaine+="<option value='" +mat['1'][i][0]+ "'>&nbsp;"+mat['1'][i][1]+"&nbsp;</OPTION>";
                chaine+="</select></P></TD>";
                chaine+="</FORM>";
                //document.write(chaine);
                choix_mat=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;
                if(choix_mat=="3"){
                    // document.forms.Form1.elements.degressif.disabled=true;
                    document.forms.Form1.radiobutton [0].disabled = false;
                    document.forms.Form1.radiobutton [0].checked = true;
                    document.forms.Form1.radiobutton [1].disabled = true;
                }
                else if ((choix_mat=="4")||(choix_mat=="7")||(choix_mat=="5")){
                    // document.forms.Form1.elements.degressif.disabled=true;
                    document.forms.Form1.radiobutton [1].disabled = false;
                    document.forms.Form1.radiobutton [1].checked = true;
                    document.forms.Form1.radiobutton [0].disabled = true;
                }
                else{
                    document.forms.Form1.radiobutton [0].disabled = false;
                    document.forms.Form1.radiobutton [1].disabled = false;
                    document.forms.Form1.radiobutton [1].checked = false;
                    document.forms.Form1.radiobutton [0].checked = false;
                }


                //adapte les differentes garanties possibles
                raz("garanties");
                for (i=0; i<gar[choix].length; i++)

                {

                    new_option = new Option(gar[choix][i][1],gar[choix][i][0]);

                    document.forms.Form1.elements["garanties"].options[document.forms.Form1.elements["garanties"].length]=new_option;

                }

                var chaine="<FORM name='Form1'>";
                chaine+="<TD ALIGN='CENTER' CLASS='n'>";
                chaine+="<P>period<BR><select name='garanties' onChange=''>";
                for (i=0; i<gar["1"].length; i++)
                    chaine+="<option value='" +gar['1'][i][0]+ "'>&nbsp;"+gar['1'][i][1]+"&nbsp;</OPTION>";
                chaine+="</select></P></TD>";
                chaine+="</FORM>";
                choixmat=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;

                if(choixmat!="1"){
                    cache("zone_expl");
                }
                if(choixmat=="3"){
                    montre("list_3");
                }
                if(choixmat!="3"){
                    cache("list_3");
                }
                if (choixmat=="5"){
                    change_text("title_1", "Лихва по сметка");
                    //    document.forms.Form1.elements.title_interest.value=" LIBOR";
                }else {
                    change_text("title_1", "Базов лихвен процент");
                    //     document.forms.Form1.elements.title_interest.value=" fixed";
                    //} else {
                    //  document.forms.Form1.elements.title_interest.value="OLP ";
                }
     
                break;
        }
    }

    function raz(liste)

    {l=document.forms.Form1.elements[liste].length;

        for (i=l; i>=0; i--)

            document.forms.Form1.elements[liste].options[i]=null;

    }

    //check the textfield are not empty
    function validate_field(){
        if((document.forms.Form1.elements.account.value != "") && (document.forms.Form1.elements.period.value != "")) {
            return true;
        } else { if (document.forms.Form1.elements.account.value == ""){
            //if the field is empty --> messagebox
            alert("Попълнете полето 'Сума' !");
            return false;
        } else{  //if the field is empty --> messagebox
            alert("Попълнете полето 'Период'!");
            return false;
        }
        }


    }

    //Check the user chose a radiobutton
    function validate_checkBox(){
        if (document.forms.Form1.radiobutton [0].checked == false &&  document.forms.Form1.radiobutton [1].checked == false){
            alert("Изберете вида на вноската");
            return false;
        } else {
            return true;
        }
    }

    function fonc_garanties(){
        var m11=0;
        var m12=0;
        var m13=0;
        var m14=0;
        var m15=0;
        m11=6;
m12=5;
m13=2.5;
m14=1;
m15=3;

        garanties=document.forms.Form1.elements.garanties.selectedIndex;
        var point;
        switch(garanties){
            case 0:  point=m12;  //ИПОТЕКА 0
                return point;
                break;
            case 1: point=m11;   //ПОРЪЧИТЕЛСТВО 1
                return point;
                break;
            case 2: point=m13;   //ЗАЛОГ 2
                return point;
                break;
            case 3: point=m14;   //ИПОТЕКА 2
                return point;
                break;
            case 4: point=m15;   //ПОРЪЧИТЕЛСТВО 2
                return point;
                break;
        }

    }


    function calcul_lineaire(interet, majo){
        somme=document.forms.Form1.elements.account.value;
        temps=document.forms.Form1.elements.period.value;
        interet = check_interet(interet, majo);
        majo = check_majo(majo);
        percent_aff=interet+majo;
        document.forms.Form1.elements.percentage.value=Math.round(percent_aff*100)/100;
        //old :percent=(((interet+majo)/12)/100);
        //new :
        percent=Math.round( (((interet+majo)/12)/100)/(360/360) * 1000000000) / 1000000000;
        //percent=(((interet+majo)/12)/100)/(360/360);
        tempo=1+percent;
        annuite=Math.round((somme*percent)/(1-(Math.pow(tempo,(-(temps)))))*100)/100;
        annuite_temp=(somme*percent)/(1-(Math.pow(tempo,(-(temps)))));
        //annuite=Math.round(((somme*(1+percent))/temps)*100)/100;
        document.forms.Form1.elements.payment.value=annuite;
        //interets pour toute la periode
        decrease_temp = (somme * percent_aff / 100) / 12;
        montant_restant =  somme - (annuite - decrease_temp);
        montant_restant = Math.round(montant_restant * 100) / 100;
        temp_days = 30;
        for(i=1; i<temps;i++){
            decrease_temp = decrease_temp + (montant_restant * (percent_aff / 100 / 360)) * temp_days; //7
            decrease_temp = Math.round(decrease_temp * 100) / 100;
            montant_restant =  montant_restant - (annuite - (montant_restant * (percent_aff / 100 / 360)) * temp_days);
            montant_restant = Math.round(montant_restant * 100) / 100;
        }
        //document.forms.Form1.elements.total_interest.value=Math.round(((annuite_temp*temps)-somme)*100)/100;
        document.forms.Form1.elements.total_interest.value=decrease_temp;
        document.forms.Form1.elements.txt_pay.value=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value ;
        document.forms.Form1.elements.txt_interest.value=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;

    }

    function calcul_degressif(interest, majo){
        somme=document.forms.Form1.elements.account.value; //2
        temps= document.forms.Form1.elements.period.value;
        var tot_interest=0;
        interest = check_interet(interest, majo);
        majo = check_majo(majo);
        percent=(interest+majo)/100;   //3
        document.forms.Form1.elements.percentage.value=Math.round(percent*100*100)/100;

        var date_1 = new Date();
        var date_2 = new Date();
        date_1.setMonth(date_1.getMonth());
        date_2.setMonth(date_1.getMonth() + 1);
        temp_days = Math.round((date_2 - date_1)/1000/60/60/24);

        annuite = somme / temps; //4
        annuite = somme - (Math.round(annuite * 100) / 100) * temps + annuite;
        var montant_restant=document.forms.Form1.elements.account.value;
        montant_restant =  somme - annuite;
        decrease = Math.round(((somme*percent)/12)*100) / 100;  //6
        decrease_temp = (somme * percent * temp_days) / 360;
        annuite = Math.round(annuite * 100) / 100;
        decrease_temp = Math.round(decrease_temp * 100) / 100;
        document.forms.Form1.elements.month.value=Math.round((annuite+decrease_temp)*100)/100;   //7
        document.forms.Form1.elements.month_g.value=Math.round(annuite*100)/100;
        annuite = somme / temps;
        document.forms.Form1.elements.month_n.value=Math.round(annuite*100)/100;
        document.forms.Form1.elements.month_l.value=Math.round(decrease_temp*100)/100;

        montant_restant = Math.round(montant_restant * 100) / 100;
        decrease_value = decrease_temp;
        decrease_value = Math.round(decrease_value * 100) / 100;
        for(i=1; i<temps;i++){
            date_1.setMonth(date_1.getMonth() + 1);
            date_2.setMonth(date_1.getMonth() + 1);
            temp_days = Math.round((date_2 - date_1)/1000/60/60/24);
            decrease_value = (montant_restant * (percent / 360)) * temp_days;
            decrease_value = Math.round((decrease_value - 0.0001) * 100) / 100;
            decrease_temp = decrease_temp + decrease_value;
            montant_restant =  montant_restant - annuite;
            montant_restant = Math.round(montant_restant * 100) / 100;
        }
        //document.forms.Form1.elements.decreasing.value = Math.round(decrease_value * 100) / 100 * (-1);
        document.forms.Form1.elements.total_interest_d.value = Math.round(decrease_temp * 100) / 100;
        document.forms.Form1.elements.txt_month.value=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;
        document.forms.Form1.elements.txt_decreasing.value=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;
        document.forms.Form1.elements.txt_interest_d.value=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;}

    function check_interet(interet, majo) {
        var check_value = 'yes';
        var min_interest = 0;
        var min_interest_textbg = '';
        var min_interest_texten = '';
        min_interest=14;
min_interest_textbg='Text for bg';
min_interest_texten='Text for en';

        min_interest = 0;
        //if (document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value == 1) { check_value = 'yes'; }
        if ((document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value == 1 || document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value == 5) && document.forms.Form1.elements.garanties.options[document.forms.Form1.elements.garanties.selectedIndex].value == 2) {
            check_value = 'no';
            if (isNaN(document.forms.Form1.elements.user_interest.value)) {
                interet = min_interest;
            }else{
                interet = document.forms.Form1.elements.user_interest.value * 1;
            }
        }
        //alert(document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value + " " + document.forms.Form1.elements.garanties.options[document.forms.Form1.elements.garanties.selectedIndex].value + ' ' + check_value)
        if (check_value == 'yes') {
            if ((interet + majo) < min_interest) { interet = min_interest - majo; }
            //montre('user_text');
            //document.forms.Form1.elements.user_text.innerHTML = min_interest_textbg;
        }else{
            //cache('user_text');
            //document.forms.Form1.elements.user_text.innerHTML = '';
        }
        return interet;
    }

    function check_majo(majo) {
        if ((document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value == 1 || document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value == 5) && document.forms.Form1.elements.garanties.options[document.forms.Form1.elements.garanties.selectedIndex].value == 2) {
            majo = 1.5;
            document.forms.Form1.elements.rappel_majoration.value = majo;
            document.forms.Form1.elements.interest_type.value = "";
            if (isNaN(document.forms.Form1.elements.user_interest.value)) {
                interet = min_interest;
            }else{
                interet = document.forms.Form1.elements.user_interest.value * 1;
                document.forms.Form1.elements.rappel_interest.value = interet;
            }
            change_text("title_1", "Лихва по сметка");
        }else{
            change_text("title_1", "Базов лихвен процент");
        }
        return majo;
    }

    function adaptCombo(){
        cache("zone_expl");
        choixmat=document.forms.Form1.elements.list_matiere.selectedIndex;
        choixgar=document.forms.Form1.elements.garanties.selectedIndex;
        if ((choixmat==6)&&(choixgar==0)){
            //montre("zone_expl");
            //document.forms.Form1.elements.explanation.value="Сумата трябва да бъде <=4000";
	
        }
        if ((choixmat==6)&&(choixgar==1)){
            //montre("zone_expl");
            //document.forms.Form1.elements.explanation.value="Сумата трябва да бъде <=5000";
	
        }
        if ((choixmat==0 || choixmat==6)&&(choixgar==2)) {
            montre("user"); 	
        }else{
            cache("user");
        }
    }

    ///////////////////////////////////// INTEREST RATE ///////////////////////////////



    function calcul_interest(){

        var interest=0;
        var euribor=0;
        var m11=0;
        var m12=0;
        var m13=0;
        var m14=0;
        var m15=0;
        var m21=0;
        var m22=0;
        var m31=0;
        var m32=0;
        var m41=0;
        var m51=0;
        var m61=0;
        var m71=0;
        var m62=0;
        interest=6.96;
euribor=1.099;
m11=6;
m12=5;
m13=2.5;
m14=1;
m15=3;
m21=1;
m22=3;
m31=11;
m32=12;
m41=9;
m51=6;
m61=8;
m71=10;
m62=8;

        euribor=interest;
        list_matiere=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;
        if(document.forms.Form1.radiobutton [0].checked ==true){   // ->equal
            switch(list_matiere){
                case "1": eval_point=fonc_garanties();
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_lineaire(euribor, eval_point);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        calcul_lineaire(interest, eval_point);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=eval_point;
                    //beginning of the calculations - lancement des calculs
                    break;
                case "2" :
                    if (document.forms.Form1.elements.garanties.selectedIndex == 0) {
                        majoration = m21;
                    }else{
                        majoration = m22;
                    }
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_lineaire(euribor, majoration);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        calcul_lineaire(interest, majoration);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=majoration;
                    break;
                case "3" :
                    if (document.forms.Form1.elements.garanties.selectedIndex == 0) {
                        majoration = m31;
                    }else{
                        majoration = m32;
                    }
                    calcul_lineaire(majoration, 0);
                    document.forms.Form1.elements.interest_type.value = ""
                    // choix_3=document.forms.Form1.elements.liste_3.options[document.forms.Form1.elements.liste_3.selectedIndex].value;
                    // if(choix_3==1){calcul_lineaire(12, majoration);
                    //	    interest3=12;}
                    // if(choix_3==0){
                    //  calcul_lineaire(11, majoration);
                    //   interest3=11;}
                    document.forms.Form1.elements.rappel_interest.value=majoration;
                    document.forms.Form1.elements.rappel_majoration.value=0;
                    break;
                case "6" :
                    majoration = m61;
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_lineaire(euribor, majoration);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        calcul_lineaire(interest, majoration);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=majoration;
                    break;
            }
        }
        if(document.forms.Form1.radiobutton [1].checked == true){   // ->decreasing
            switch(list_matiere){
                case "1": eval_point=fonc_garanties();
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_degressif(euribor, eval_point);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        calcul_degressif(interest, eval_point);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=eval_point;
                    break;
                case "2" :
                    if (document.forms.Form1.elements.garanties.selectedIndex == 0) {
                        majoration = m21;
                    }else{
                        majoration = m22;
                    }
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_degressif(euribor, majoration);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        calcul_degressif(interest, majoration);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=majoration;
                    break;
                case "4" :
                    majoration = m41;
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_degressif(majoration, 0);
                        document.forms.Form1.elements.rappel_interest.value=majoration;
                    }else{
                        calcul_degressif(majoration, 0);
                        document.forms.Form1.elements.rappel_interest.value=majoration;
                    }
                    document.forms.Form1.elements.interest_type.value = ""
                    document.forms.Form1.elements.rappel_majoration.value=0;
                    break;
                case "5" :
                    majoration = m51;
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        //calcul_lineaire(euribor, majoration);
                        calcul_degressif(euribor, majoration);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        //calcul_lineaire(interest, majoration);
                        calcul_degressif(interest, majoration);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=majoration;
                    break;
                case "6" :
                    majoration = m61;
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_degressif(euribor, majoration);
                        document.forms.Form1.elements.rappel_interest.value=euribor;
                    }else{
                        calcul_degressif(interest, majoration);
                        document.forms.Form1.elements.rappel_interest.value=interest;
                    }
                    document.forms.Form1.elements.rappel_majoration.value=majoration;
                    break;
                case "7" :
                    majoration = m71;
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        calcul_degressif(majoration, 0);
                        document.forms.Form1.elements.rappel_interest.value=majoration;
                    }else{
                        calcul_degressif(majoration, 0);
                        document.forms.Form1.elements.rappel_interest.value=majoration;
                    }
                    document.forms.Form1.elements.interest_type.value = ""
                    document.forms.Form1.elements.rappel_majoration.value=0;
                    break;
            }
        }
        document.forms.Form1.elements.rappel_majoration.value = check_majo(document.forms.Form1.elements.rappel_majoration.value);
    }

    // write in the textearea
    function txt(zonetxt){
        choixmat=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;
        choixgar=document.forms.Form1.elements.garanties.selectedIndex;
        choixval=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;
        if(choixmat=="1"){

            switch(zonetxt){
                case "account":

                    if( (choixgar == 0 || choixgar == 1) && choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде >=500 <=15000 BGN";
                    }
                    else if( (choixgar == 0 || choixgar == 1) && choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде >=256 <=7669 ЕUR";
                    }
                    else if( choixgar == 2 && choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде >=500 BGN";
                    }
                    else if(choixgar == 2 && choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде >=256 ЕUR";
                    }
                    else if( (choixgar == 3 || choixgar == 4) && choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде >=5000 BGN";
                    }
                    else if( (choixgar == 3 || choixgar == 4) && choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде >=2556 ЕUR";
                    }
                    else{
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" невъзможен избор";
                    }

                    break;
                case "period":

                    if(choixgar == 0 || choixgar == 1){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >1 <=120";
                    }
                    else if( (choixgar == 3 || choixgar == 4) && choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >1 <=300";
                    }
                    else if( (choixgar == 3 || choixgar == 4) && choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >1 <=360";
                    }
                    else if(choixgar == 2){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >=6 <=60";
                    }
                    else{
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" невъзможен избор";
                    }
		
                    break;
                case "user_interest":

                    montre("zone_expl");
                    document.forms.Form1.elements.explanation.value=" Лихвен процент на влога/сметката с най-висока лихва.";
		
                    break;
            }
   
        }

        if(choixmat=="2"){
   	
            switch(zonetxt){
                case "account":

                    cache("zone_expl");
                    document.forms.Form1.elements.explanation.value=" ";

                    break;
                case "period":

                    if(choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >=1 <=300";
                    }
                    else if(choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >=1 <=360";
                    }
                    else{
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" невъзможен избор";
                    }
		
                    break;
            }

        }

        if(choixmat=="3"){
   	
            switch(zonetxt){
                case "account":

                    cache("zone_expl");
                    document.forms.Form1.elements.explanation.value=" ";

                    break;
                case "period":

                    if(choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >=1 <=84";
                    }
                    else{
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" невъзможен избор";
                    }
		
                    break;
            }

        }

        if(choixmat=="4"){
   	
            switch(zonetxt){
                case "account":

                    cache("zone_expl");
                    document.forms.Form1.elements.explanation.value=" ";

                    break;
                case "period":

                    montre("zone_expl");
                    document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >=12 <=36";
		
                    break;
            }

        }

        if(choixmat=="5"){
   	
            switch(zonetxt){
                case "account":

                    cache("zone_expl");
                    document.forms.Form1.elements.explanation.value=" ";

                    break;
                case "period":

                    montre("zone_expl");
                    document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде <=72";
		
                    break;
                case "user_interest":

                    montre("zone_expl");
                    document.forms.Form1.elements.explanation.value=" Лихвен процент на влога/сметката с най-висока лихва.";
		
                    break;
            }

        }

        if(choixmat=="6"){
   	
            switch(zonetxt){
                case "account":

                    if( choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде <=5000 BGN";
                    }
                    else{
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" невъзможен избор";
                    }

                    break;
                case "period":

                    montre("zone_expl");
                    document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде <=60";
		
                    break;
            }

        }

        if(choixmat=="7"){
   	
            switch(zonetxt){
                case "account":

                    if( choixval == "BGN"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде <=20000 BGN";
                    }
                    else if(choixval == "EUR"){
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" Сумата трябва да бъде <=10225 ЕUR";
                    }
                    else{
                        montre("zone_expl");
                        document.forms.Form1.elements.explanation.value=" невъзможен избор";
                    }

                    break;
                case "period":

                    montre("zone_expl");
                    document.forms.Form1.elements.explanation.value=" Срокът трябва да бъде >=12 <=36";
		
                    break;
            }

        }

        else{ //cache("zone_expl");
        }
    }


    function checkTextField(){
        choixgar=document.forms.Form1.elements.garanties.selectedIndex;
        val_account= document.forms.Form1.elements.account.value;
        val_period= document.forms.Form1.elements.period.value;
        choixmat=document.forms.Form1.elements.list_matiere.options[document.forms.Form1.elements.list_matiere.selectedIndex].value;
        choixval=document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value;
        switch (choixmat){
            case "1" :
                if ((choixgar==0 || choixgar==1) && choixval == "BGN"){
                    if((500>val_account)||(val_account>15000)){
                        alert("Сумата трябва да бъде >=500 <=15000 BGN");
                        return false;
    	
                    } else if((val_period>120)||(val_period<2)){
                        alert("Срокът трябва да бъде >1 <=120");
                        return false;
                    }else {return true;}
                }
                if ((choixgar==0 || choixgar==1) && choixval == "EUR"){
                    if((256>val_account)||(val_account>7669)){
                        alert("Сумата трябва да бъде >=256 <=7669 ЕUR");
                        return false;
    	
                    } else if((val_period>120)||(val_period<2)){
                        alert("Срокът трябва да бъде >1 <=120");
                        return false;
                    }else {return true;}
                }
                if (choixgar==2 && choixval == "BGN"){
                    if((500>val_account)){
                        alert("Сумата трябва да бъде >=500 BGN");
                        return false;
    	
                    } else if((val_period>60)||(val_period<6)){
                        alert("Срокът трябва да бъде >=6 <=60");
                        return false;
                    }else {return true;}
                }
                if (choixgar==2 && choixval == "EUR"){
                    if((256>val_account)){
                        alert("Сумата трябва да бъде >=256 ЕUR");
                        return false;
    	
                    } else if((val_period>60)||(val_period<6)){
                        alert("Срокът трябва да бъде >=6 <=60");
                        return false;
                    }else {return true;}
                }
                if ( (choixgar==3 || choixgar == 4) && choixval == "BGN"){
                    if((5000>val_account)){
                        alert("Сумата трябва да бъде >=5000 BGN");
                        return false;
    	
                    } else if((val_period>300)||(val_period<1)){
                        alert("Срокът трябва да бъде >=1 <=300");
                        return false;
                    }else {return true;}
                }
                if ( (choixgar==3 || choixgar == 4) && choixval == "EUR"){
                    if((2556>val_account)){
                        alert("Сумата трябва да бъде >=2556 ЕUR");
                        return false;
    	
                    } else if((val_period>360)||(val_period<1)){
                        alert("Срокът трябва да бъде >=1 <=360");
                        return false;
                    }else {return true;}
                }

                else {return true;}
                break;

            case "2" :
                if (choixval == "BGN"){
                    if((val_period>300)||(val_period<1)){
                        alert("Срокът трябва да бъде >=1 <=300");
                        return false;
                    }else {return true;}
                }
                if (choixval == "EUR"){
                    if((val_period>360)||(val_period<1)){
                        alert("Срокът трябва да бъде >=1 <=360");
                        return false;
                    }else {return true;}
                }

                else {return true;}
                break;

            case "3" :
                if (choixval == "EUR"){
                    if((val_period>84)||(val_period<1)){
                        alert("Срокът трябва да бъде >=1 <=84");
                        return false;
                    }else {return true;}
                }

                else {return true;}
                break;
            case "4" :
                if((val_period>36)||(val_period<12)){
                    alert("Срокът трябва да бъде >=12 <=36");
                    return false;
                }else {return true;}
                break;
            case "5" :
                if((val_period>72)||(val_period<1)){
                    alert("Срокът трябва да бъде <=72");
                    return false;
                }else {return true;}
                break;
            case "6" :
                if (choixval == "BGN"){
                    if((val_account>5000)){
                        alert("Сумата трябва да бъде <=5000 BGN");
                        return false;
    	
                    } else if((val_period>60)||(val_period<1)){
                        alert("Срокът трябва да бъде <=60");
                        return false;
                    }else {return true;}
                }

                else {return true;}
                break;
            case "7" :
                if (choixval == "BGN"){
                    if((val_account>20000)){
                        alert("Сумата трябва да бъде <=20000 BGN");
                        return false;
    	
                    } else if((val_period>36)||(val_period<12)){
                        alert("Срокът трябва да бъде >=12 <=36");
                        return false;
                    }else {return true;}
                }
                if (choixval == "EUR"){
                    if((val_account>10225)){
                        alert("Сумата трябва да бъде <=10225 EUR");
                        return false;
    	
                    } else if((val_period>36)||(val_period<12)){
                        alert("Срокът трябва да бъде >=12 <=36");
                        return false;
                    }else {return true;}
                }

                else {return true;}
                break;

            default:if(val_period>84){
                alert("Срокът трябва да бъде <84 месеца !");
                return false;
            }else{ return true;}
                break;
        }

    }
    //////////////////////////////////////////main function///////////////////////////////
    function Calculate3(){
        var eval_field=true;
        var eval_checkBox=true;
        var eval_txtfield=true;
        //check the textfields are not empty
        eval_field=validate_field();
        if(eval_field){

            //check the values in the textfields	
            eval_txtfield=checkTextField();
            if(eval_txtfield){
                //check a radiobutton was chosen
                eval_checkBox=validate_checkBox();
                if (eval_checkBox){

                    //disable textfields switch the choice equal/decreasing
                    if (document.forms.Form1.radiobutton [0].checked == true){
                        document.forms.Form1.elements.percentage.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.payment.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.total_interest.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.txt_pay.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.txt_interest.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.month.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.month_g.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.month_n.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.month_l.style.backgroundColor='#DDDDDD';
                        //document.forms.Form1.elements.decreasing.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.total_interest_d.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.txt_month.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.txt_decreasing.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.txt_interest_d.style.backgroundColor='#DDDDDD';	
                    }else {
                        document.forms.Form1.elements.percentage.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.payment.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.total_interest.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.txt_pay.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.txt_interest.style.backgroundColor='#DDDDDD';
                        document.forms.Form1.elements.month.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.month_g.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.month_n.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.month_l.style.backgroundColor='#FFFFFF';
                        //document.forms.Form1.elements.decreasing.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.total_interest_d.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.txt_month.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.txt_decreasing.style.backgroundColor='#FFFFFF';
                        document.forms.Form1.elements.txt_interest_d.style.backgroundColor='#FFFFFF';
                    }
                    if (document.forms.Form1.elements.currency.options[document.forms.Form1.elements.currency.selectedIndex].value == "EUR") {
                        document.forms.Form1.elements.interest_type.value = "EURIBOR";
                    }else{
                        document.forms.Form1.elements.interest_type.value = "ОЛП";
                    }
                    calcul_interest();
                }
       	
            }
        }
    }

    function Clearform(){

        document.forms.Form1.elements.explanation.value="";
        //cache("explanation");
  
        document.forms.Form1.radiobutton [0].disabled = false;
        document.forms.Form1.radiobutton [1].disabled = false;
        document.forms.Form1.radiobutton [1].checked = false;
        document.forms.Form1.radiobutton [0].checked = false;
  
        document.forms.Form1.elements.account.value = "";
        document.forms.Form1.elements.period.value = "";
        document.forms.Form1.elements.interest_type.value = "";
        document.forms.Form1.elements.rappel_interest.value = "";
        document.forms.Form1.elements.rappel_majoration.value = "";
  
        changeCurrency('list_matiere', 1);
  
        document.forms.Form1.elements.list_matiere.selectedIndex = 0;
        document.forms.Form1.elements.garanties.selectedIndex = 0;
        document.forms.Form1.elements.currency.selectedIndex = "BGN";

        document.forms.Form1.elements.total_interest_d.value = "";
        document.forms.Form1.elements.month.value = "";
        document.forms.Form1.elements.month_g.value = "";
        document.forms.Form1.elements.month_n.value = "";
        document.forms.Form1.elements.month_l.value = "";
        document.forms.Form1.elements.txt_month.value = "";
        //document.forms.Form1.elements.decreasing.value = "";
        document.forms.Form1.elements.txt_decreasing.value = "";
        document.forms.Form1.elements.txt_interest_d.value = "";

        document.forms.Form1.elements.percentage.value = "";
        document.forms.Form1.elements.payment.value = "";
        document.forms.Form1.elements.total_interest.value = "";
        document.forms.Form1.elements.txt_pay.value = "";
        document.forms.Form1.elements.txt_interest.value = "";

    }