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 "";
}
function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}

function castvote()
{
var answer;
var un;
un = getQueryVariable("un");
answer = getCheckedValue(document.forms[0].elements['qpvote']);
window.open('qpresults.aspx?un=' + un + '&a=' + answer + '','displayWindow','scrollbars,menubar=no,status=no,width=450,height=450');
}