// Browser Window Size and Position
// copyright Stephen Chapman, 3rd Jan 2005, 8th Dec 2005
// you may copy these functions but please keep the copyright notice as well
function pageWidth() 
	{
	return window.innerWidth != null ? window.innerWidth : document.documentElement && 
		document.documentElement.clientWidth ? document.documentElement.clientWidth : 
		document.body != null ? document.body.clientWidth : null;
	}