function update_cart(){
	document.frm_order.hdn_submit.value="update";
	document.frm_order.submit();
}
function del_cart(){
	document.frm_order.hdn_submit.value="del";
	document.frm_order.submit();
}
function order_cart(){
	document.frm_order.hdn_submit.value="order";
	document.frm_order.submit();
}