function Calc()
{
		var one = eval(document.ins.item_number.options[document.ins.item_number.selectedIndex].value);
		var two = eval(document.ins.type.options[document.ins.type.selectedIndex].value);



        var temp =  one * two * 1.00;
        document.ins.amount.value = formatCurrency(temp);


document.ins.item_name.value = document.ins.item_number.options[document.ins.item_number.selectedIndex].text + " " + document.ins.type.options[document.ins.type.selectedIndex].text + " " + "(category=" + document.ins.category.options[document.ins.category.selectedIndex].text + ")"


}
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 ('$' + num + '.' + cents);
}