function getXMLHttp(){
  var xmlHttp;
  try {
    //Firefox, Opera 8.0+, Safari
    xmlHttp = new XMLHttpRequest();
  }
  catch(e)  {
    //Internet Explorer
    try{      
		xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch(e){
      try{
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
      }
      catch(e){
        alert("Your browser does not support AJAX!")
        return false;
      }
    }
  }
  return xmlHttp;
}
function MakeRequest(url,id,parameters){
  var myid = id;
  var xmlHttp = getXMLHttp();
  xmlHttp.onreadystatechange = function()
  {
    if(xmlHttp.readyState == 4)
    {
      HandleResponse(myid,xmlHttp.responseText);
    }
  }

  xmlHttp.open("POST",url, true);
  xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  xmlHttp.setRequestHeader("Content-length", parameters.length);
  xmlHttp.setRequestHeader("Connection", "close");
  xmlHttp.send(parameters);
}
function HandleResponse(id,response){
 	document.getElementById(id).innerHTML = response;
}