function GetXmlHttpObject()
{
	var xmlHttp = null;
	
	try
  {
  	// Firefox, Opera 8.0+, Safari
  	xmlHttp = new XMLHttpRequest();
  }
	catch (e)
  {
  	// Internet Explorer
  	try
    {
    	xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
    }
  	catch (e)
    {
    	xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
	
	return xmlHttp;
}