Event.observe(document, 'dom:loaded', function () {
	for (b in Prototype.Browser) if (Prototype.Browser[b]) $(document.body).addClassName(b);
	if (window.navigator.appName == "Microsoft Internet Explorer") {
	   if (document.documentMode) $(document.body).addClassName('IE'+document.documentMode);
	   else if (document.compatMode == "CSS1Compat") $(document.body).addClassName('IE7');
	}
});