function validate_co_new()
{
	chosen = ""
	len = document.myform2.adtype.length
	

	for (i = 0; i <len; i++) {
		if (document.myform2.adtype[i].checked) {
			chosen = document.myform2.adtype[i].value
		}
	}

	if (chosen == "") {
		alert("No Ad Type Chosen")
	return false;
	}
	return true;
}