function go(cate)
	{
	window.document.cart.action=cate;
	window.document.cart.submit();
	}

function calculate(qty,qnty,rate,prc,tot)
	{
	if ((isNaN(qnty)) || (qty.value.indexOf('-',0)!=-1))
		{
		alert("Only Numeric Value Allowed.");
		qty.value=1;
		prc.value=rate*qty.value;
		}
	else
		{
		price=prc.value; //get the old price of item
		var total=eval(tot)-eval(price)	;
		prc.value=Math.round((rate * qnty)*100)/100;
		price=prc.value;
		total=eval(total)+ eval(price);
		window.document.cart.tot.value=(total*100)/100;
		//window.document.cart.vat.value=Math.round((total*(17.5/100))*100)/100;
		window.document.cart.gtot.value=Math.round(total*100)/100;
		}
	}
function chgfoc()
	{
	window.document.cart.continuelook.focus();
	}
function bookord(add)
	{
	window.document.cart.action=add;
	window.document.cart.submit();
	}