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 rate_joke(jokerating, jokeid, divid, jokerate)
{ 
  var xmlHttp = getXMLHttp();
  xmlHttp.onreadystatechange = function()
  {
    if(xmlHttp.readyState == 4)
    {
      HandleResponse(xmlHttp.responseText,divid);

    }
  }
  xmlHttp.open("GET", "ajax/login_post.php?jokerating="+jokerating+"&jokeid="+jokeid+"&jokerate="+jokerate, true);
  xmlHttp.send(null);
}
function HandleResponse(response,divid)
{
  document.getElementById(divid).innerHTML = response;
  //alert(response);
}