function formatCurrency(num) {
  num = num.toString().replace(/\$|\,/g,'');
  if(isNaN(num))
    num = "0";
    sign = (num == (num = Math.abs(num)));
    num = Math.floor(num*100+0.50000000001);
    cents = num%100;
    num = Math.floor(num/100).toString();
  if(cents<10)
    cents = "0" + cents;
  for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
    num = num.substring(0,num.length-(4*i+3))+','+
    num.substring(num.length-(4*i+3));
  return (((sign)?'':'-') + '$' + num + '.' + cents);
}
function IsNumeric(sText)
{
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }

function jumpTo(URL_List){


if (IsNumeric(document.materials_form.T1.value)){}
else{	document.materials_form.T1.value=0;}

if (IsNumeric(document.materials_form.T2.value)){}
else{	document.materials_form.T2.value=0;}

if (IsNumeric(document.materials_form.T3.value)){}
else{	document.materials_form.T3.value=0;}

if (IsNumeric(document.materials_form.T4.value)){}
else{	document.materials_form.T4.value=0;}

if (IsNumeric(document.materials_form.T5.value)){}
else{	document.materials_form.T5.value=0;}

if (IsNumeric(document.materials_form.T6.value)){}
else{	document.materials_form.T6.value=0;}

if (IsNumeric(document.materials_form.T7.value)){}
else{	document.materials_form.T7.value=0;}

if (IsNumeric(document.materials_form.T8.value)){}
else{	document.materials_form.T9.value=0;}

if (IsNumeric(document.materials_form.T10.value)){}
else{	document.materials_form.T10.value=0;}

if (IsNumeric(document.materials_form.T11.value)){}
else{	document.materials_form.T11.value=0;}

	var p1=document.materials_form.T1.value * document.materials_form.p1.value *1;
	var p2=document.materials_form.T2.value * document.materials_form.p2.value *1;
	var p3=document.materials_form.T3.value * document.materials_form.p3.value *1;
	var p4=document.materials_form.T4.value * document.materials_form.p4.value *1;
	var p5=document.materials_form.T5.value * document.materials_form.p5.value *1;
	var p6=document.materials_form.T6.value * document.materials_form.p6.value *1;
	var p7=document.materials_form.T7.value * document.materials_form.p7.value *1;
	var p8=document.materials_form.T8.value * document.materials_form.p8.value *1;
	var p9=document.materials_form.T9.value * document.materials_form.p9.value *1;
	var p10=document.materials_form.T10.value * document.materials_form.p10.value *1;
	var p11=document.materials_form.T11.value * document.materials_form.p11.value *1;

   var temp_tot = p1+p2+p3+p4+p5+p6+p7+p8+p9+p10+p11;
   var tot= temp_tot *1;
   document.materials_form.t_total.value =formatCurrency(tot);

}