function ajaxManager() 
 {
 var request;
 var versions=new Array("MSXML2.XMLHttp.6.0", "MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0","MSXML2.XMLHttp.3.0","MSXML2.XMLHttp","Microsoft.XMLHttp");

 	if (document.getElementById) 
 	{
   		if (window.XMLHttpRequest) 
   		{
    		request=new XMLHttpRequest();
   		}
   
   		if(window.ActiveXObject)
   		{
    			for (var i=0;i<versions.length;i++) 
    			{
     				try
     				{
      				request = new ActiveXObject(versions[i]);
     				}
     
     				catch(exception)
     				{
     				}
    			}
   		} 
   		
  	}
return request;
 }