function validateForm1() {
 if (document.purchaseForm.os0.value == "false") {
		alert("Please select a postage option.");
		return false;
	}
	else {
		return true;
	}
}

function validateForm2() {
 if (document.purchaseForm2.os0.value == "false") {
		alert("Please select a postage option.");
		return false;
	}
	else {
		return true;
	}
}