function getHTTPObject()
{
	if(window.ActiveXObject)
	{
		return new ActiveXObject("Microsoft.XMLHTTP");
	}else if(window.XMLHttpRequest)
	{
		return new XMLHttpRequest();
	}else
	{
		alert("Your browser does not support AJAX, please download Firefox at: http://getfirefox.com");
		return null;
	}	
}