var xmlhttp;
var reponseToObj
function ajax_GetData(phpFile,queryString,responseTo)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url=phpFile;
if (queryString=="") 
{
	url += "?temp="+Math.random();
}
else
{
	url += "?" + queryString + "&temp="+Math.random();
}
reponseToObj = responseTo;
document.getElementById(reponseToObj).innerHTML="<img src=images/loader.gif border=0>";
xmlhttp.onreadystatechange=ajax_stateChanged;
xmlhttp.open("POST",url,true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlhttp.setRequestHeader("Content-length", queryString.length);
xmlhttp.setRequestHeader("Connection", "close");
xmlhttp.send(queryString);
}

function ajax_stateChanged()
{
if (xmlhttp.readyState==4)
{
document.getElementById(reponseToObj).innerHTML=xmlhttp.responseText;
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}