var XMLHttpReq;
function createXMLHttpRequest()
{
	if(window.XMLHttpRequest)
	{
		XMLHttpReq = new XMLHttpRequest();
	}
	else if (window.ActiveXObject)
	{
		try
		{
			XMLHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				XMLHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
			}
		}
	}
}