function SetAnswerId(radioButtonList)
{
	var hfAnswerId = document.getElementById("hfAnswerId");
	var rblAnswers = document.aspnetForm[radioButtonList];
	var answerId = getCheckedValue(rblAnswers)
	hfAnswerId.value = answerId;
	
}
function getCheckedValue(radioObj) 
{
if(!radioObj)
	return "";
var radioLength = radioObj.length;
if(radioLength == undefined)
	if(radioObj.checked)
		return radioObj.value;
	else
		return "";
for(var i = 0; i < radioLength; i++) {
	if(radioObj[i].checked) {
		return radioObj[i].value;
	}
}
return "";
}