function checkOrder( f ) {
	var err = String("");

	if( f.bill_name.value.length < 1 )
		err += "\tBilling name left blank\n";
	if( f.bill_address1.value.length < 1 )
		err += "\tAddress left blank\n";
	if( f.bill_city.value.length < 1 )
		err += "\tCity left blank\n";
	if( f.bill_postalcode.value.length < 1 )
		err += "\tPostal Code left blank\n";
	if( f.bill_phone.value.length < 1 )
		err += "\tPhone left blank\n";
	if( f.bill_email.value.length < 1 )
		err += "\tEMail left blank\n";
	
	if( err.length == 0 )
		return true;
	else {
		alert( "The following errors have been encountered:\n" + err );
		return false;
	}
}