//----------- This function returns the xmlhttp request object. A common object wll be used for all AJAX page --------#
function getHttpRequestObject() 
{
	var httpRequest = false;
	try 
	{
		httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch(ee) 
	{
		try 
		{
			httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(eee) 
		{
			httpRequest = null;
		}
	}
	if (!httpRequest && typeof XMLHttpRequest != "undefined") 
	{
		httpRequest = new XMLHttpRequest();
	}
	return httpRequest;
}