function ajaxFunction(obj, serverpage)
  {
 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;
      }
    }
  }
    xmlHttp.onreadystatechange=function()
      {
      if(xmlHttp.readyState==4)
        {
       document.getElementById(obj).innerHTML=xmlHttp.responseText;
        }
      }
    xmlHttp.open("GET", serverpage ,true);
    xmlHttp.send(null);
  }