function startCalc(){
interval = setInterval("calc()",1);
}
function calc(){
a = document.adslpriceform.a.value;
b = document.adslpriceform.b.value;
c = document.adslpriceform.c.value;
d = document.adslpriceform.d.value;

dv=b/d;
if(dv<3){p=b*2000;}
else
{
p1=(2000*(100+(23*(dv-3))))/100;
p=b*p1;
}

if(d==1)
{
thirdBox = ((((a*1)+p)*c)/100);
}
if(d==3)
{
thirdBox = ((((a*3)+p)*c)/100);
}
if(d==6)
{
thirdBox = ((((((a*6)+p)*c)/100)*95)/100);
}
if(d==12)
{
thirdBox = ((((((a*12)+p)*c)/100)*90)/100);
}
document.adslpriceform.thirdBox.value = formatCurrency(thirdBox)
e = document.adslpriceform.e.value;
f = document.adslpriceform.f.value;
g = document.adslpriceform.g.value;
thirdBox2 = (e * 1)+(f * 1)+(g * 1);
document.adslpriceform.thirdBox2.value = formatCurrency(thirdBox2)
}
function stopCalc(){
clearInterval(interval);
}



function startCalc2(){
interval = setInterval("calc2()",1);
}

function calc2(){
tariffs = document.adslpriceformsummer.tariffs.value;
e = document.adslpriceformsummer.e.value;
f = document.adslpriceformsummer.f.value;
invoicetariffs = tariffs;
invoicee = (e*1)+(f*1);
invoice = (invoicetariffs*1)+(invoicee*1)+15000;
document.adslpriceformsummer.invoicetariffs.value = formatCurrency(invoicetariffs)
document.adslpriceformsummer.invoicee.value = formatCurrency(invoicee)
document.adslpriceformsummer.invoice.value = formatCurrency(invoice)
}
function stopCalc2(){
clearInterval(interval);
}

function startCalc3(){
interval = setInterval("calc3()",1);
}

function calc3(){
tariffs = document.adslpriceformrenew.tariffs.value;
invoicetariffs = tariffs;
document.adslpriceformrenew.invoicetariffs.value = formatCurrency(invoicetariffs)
}
function stopCalc3(){
clearInterval(interval);
}

function startCalc4(){
interval = setInterval("calc4()",1);
}

function calc4(){
tariffs = document.adslpriceformrenewh.tariffs.value;
invoicetariffs = tariffs*5000;

document.adslpriceformrenewh.invoicetariffs.value = formatCurrency(invoicetariffs)
}
function stopCalc4(){
clearInterval(interval);
}



function setOptions(chosen){
var selbox = document.adslpriceform.b;
selbox.options.length = 0;
if (chosen == "1") {
selbox.options[selbox.options.length] = new Option('1 G','1');
selbox.options[selbox.options.length] = new Option('2 G','2');
selbox.options[selbox.options.length] = new Option('3 G','3');
selbox.options[selbox.options.length] = new Option('4 G','4');
selbox.options[selbox.options.length] = new Option('5 G','5');
selbox.options[selbox.options.length] = new Option('6 G','6');
selbox.options[selbox.options.length] = new Option('7 G','7');
selbox.options[selbox.options.length] = new Option('8 G','8');
selbox.options[selbox.options.length] = new Option('9 G','9');
}
if (chosen == "3") {
selbox.options[selbox.options.length] = new Option('3 G','3');
selbox.options[selbox.options.length] = new Option('4 G','4');
selbox.options[selbox.options.length] = new Option('5 G','5');
selbox.options[selbox.options.length] = new Option('6 G','6');
selbox.options[selbox.options.length] = new Option('7 G','7');
selbox.options[selbox.options.length] = new Option('8 G','8');
selbox.options[selbox.options.length] = new Option('9 G','9');
selbox.options[selbox.options.length] = new Option('10 G','10');
selbox.options[selbox.options.length] = new Option('12 G','12');
selbox.options[selbox.options.length] = new Option('14 G','14');
selbox.options[selbox.options.length] = new Option('16 G','16');
selbox.options[selbox.options.length] = new Option('18 G','18');
selbox.options[selbox.options.length] = new Option('21 G','21');
selbox.options[selbox.options.length] = new Option('24 G','24');
selbox.options[selbox.options.length] = new Option('27 G','27');
}
if (chosen == "6") {
selbox.options[selbox.options.length] = new Option('6 G','6');
selbox.options[selbox.options.length] = new Option('9 G','9');
selbox.options[selbox.options.length] = new Option('12 G','12');
selbox.options[selbox.options.length] = new Option('15 G','15');
selbox.options[selbox.options.length] = new Option('18 G','18');
selbox.options[selbox.options.length] = new Option('21 G','21');
selbox.options[selbox.options.length] = new Option('24 G','24');
selbox.options[selbox.options.length] = new Option('27 G','27');
selbox.options[selbox.options.length] = new Option('30 G','30');
selbox.options[selbox.options.length] = new Option('35 G','35');
selbox.options[selbox.options.length] = new Option('40 G','40');
selbox.options[selbox.options.length] = new Option('45 G','45');
selbox.options[selbox.options.length] = new Option('50 G','50');
}
if (chosen == "12") {
selbox.options[selbox.options.length] = new Option('12 G','12');
selbox.options[selbox.options.length] = new Option('15 G','15');
selbox.options[selbox.options.length] = new Option('18 G','18');
selbox.options[selbox.options.length] = new Option('21 G','21');
selbox.options[selbox.options.length] = new Option('24 G','24');
selbox.options[selbox.options.length] = new Option('27 G','27');
selbox.options[selbox.options.length] = new Option('30 G','30');
selbox.options[selbox.options.length] = new Option('36 G','36');
selbox.options[selbox.options.length] = new Option('42 G','42');
selbox.options[selbox.options.length] = new Option('48 G','48');
selbox.options[selbox.options.length] = new Option('54 G','54');
selbox.options[selbox.options.length] = new Option('60 G','60');
selbox.options[selbox.options.length] = new Option('66 G','66');
selbox.options[selbox.options.length] = new Option('72 G','72');
selbox.options[selbox.options.length] = new Option('80 G','80');
selbox.options[selbox.options.length] = new Option('90 G','90');
selbox.options[selbox.options.length] = new Option('108 G','108');
}
change();
}