document.observe("dom:loaded", onDocComplete);

function onDocComplete(evt)
{			
	//$('compatibility').hide();
	if (isOldIE())
	{
		var el = new Element('div');
		el.addClassName('compatibility');
		el.update("<b>Features or other parts of the site may not work properly because your browser is extremely old.</b><br/>" + 
				"Upgrade to: <a href='http://www.microsoft.com/windows/internet-explorer' >Microsoft&reg; Internet Explorer&reg; 8</a>,&nbsp;&nbsp;&nbsp;&nbsp;" +
				"<a href='http://www.mozilla.com/en-US/products/download.html' >Mozilla&reg; Firefox&reg;</a>,&nbsp;&nbsp;&nbsp;&nbsp; " + 
				"<a href='http://www.apple.com/safari/' >Apple&reg; Safari&reg;</a>,&nbsp;&nbsp;&nbsp;&nbsp;" + 
				"or <a href='http://en.wikipedia.org/wiki/List_of_web_browsers'>others</a>.<br/>" +
				"<b>Note: always obtain permission from the computer owner or system administrator before installing or upgrading software.</b>");
						
		$(document.body).insert({top: el});
	}
}



function isOldIE()
{
	var browser=navigator.appName;
	var ret = false;
	if (browser == "Microsoft Internet Explorer")
	{
		var parts = navigator.appVersion.split("MSIE");
		if (parts.length > 1)
		{
			var pieces = parts[1].toString().split(";");
			var ver = parseInt(pieces[0]);
			if (ver < 7)
			{
				ret = true;
			}
		}
	}
	return ret;
}