//<![CDATA[
function CheckPoll(form) {
	var frm = form;
	myOption = -1;
	for (i=frm.pollItem.length-1; i > -1; i--) {
		if (frm.pollItem[i].checked) {
			myOption = i;
		}
	}
	if (myOption == -1) {
		alert("You must select a poll option to vote");
		return false;
	}
}              					  
//]]>