//function for creating requestobject
 function createRequest()
  {
	//var request=null;
   try
     {
     // Firefox, Opera 8.0+, Safari
      request=new XMLHttpRequest();
      }
  catch (trymicrosoft)
    {
       // Internet Explorer
      try
       {
       request=new ActiveXObject("Msxml2.XMLHTTP");
        }
      catch (eothermicrosoft)
      {
      try
        {
         request=new ActiveXObject("Microsoft.XMLHTTP");
        }
      catch (failed)
        {
        alert("Your browser does not support AJAX!");
        request = null;
	    return false;
        }
      }
    }
      if (request == null)
      alert("Error creating request object");
}	


 function createRequestObject()
  {
  
//  var request=null;
   try
     {
     // Firefox, Opera 8.0+, Safari
      request=new XMLHttpRequest();
      }
  catch (trymicrosoft)
    {
       // Internet Explorer
      try
       {
       request=new ActiveXObject("Msxml2.XMLHTTP");
        }
      catch (eothermicrosoft)
      {
      try
        {
         request=new ActiveXObject("Microsoft.XMLHTTP");
        }
      catch (failed)
        {
        alert("Your browser does not support AJAX!");
        request = null;
	    return false;
        }
      }
    }
      
  return request;
}