// voting code
function vote(msgId, voteUp, voteDn) {
	var oHTTP = false;
	var sUrl = "voter_service.php";
	var sQuery = "voteUp=" + voteUp + "&voteDn=" + voteDn + "&messageId=" + msgId;
	if (window.XMLHttpRequest) {
  	oHTTP = new XMLHttpRequest();
    } // IE
	else if (window.ActiveXObject) {
    oHTTP = new ActiveXObject("Microsoft.XMLHTTP");
  }	
	oHTTP.open('GET', sUrl + "?" + sQuery, true);
  oHTTP.onreadystatechange = function() {
  	if (oHTTP.readyState == 4) {
    	UpdatePage(msgId, oHTTP.responseText);
    }
  }
  oHTTP.send(null);	
}

function UpdatePage(msgId, sResponse){
	var div = document.getElementById("voter_" + msgId);
	div.innerHTML = sResponse;
}