function getSubTotal()
{
	var numberOfForms = document.cart_contents.length;
	var formIndex;
	for(formIndex = 0; formIndex < numberOfForms; formIndex++)
		{
			alert(document.cart_contents[formIndex].name);
			var price = document.cart_contents[formIndex].price.value;
			var qty = document.cart_contents[formIndex].quantity.value;
			var toal = price * qty;
			alert(total);
			
		}
}