function addPaypal(txtname,txtamount,txtshipping,txttax){
	document.paypalcart.item_name.value = txtname;
	document.paypalcart.amount.value = parseFloat(txtamount);
	document.paypalcart.shipping.value = txtshipping;
	// document.paypalcart.tax.value = txttax;
	// document.paypalcart.tax.value = parseFloat(txtamount) * 0.12;
	document.paypalcart.submit();
}