var n = (navigator.appName == "Netscape")
var n4 = (document.layers) ? 1:0
var ie = (navigator.appName == "Microsoft Internet Explorer")
var ie4 = (document.all) ? 1:0
var browserName = navigator.appName;
var rolloversOK = 0;
browserVer = parseInt(navigator.appVersion);
if (n && browserVer >= 3) rolloversOK = 1;
else if (ie && browserVer >= 4) rolloversOK = 1;

if(ie) {
	Element.observe(document, "dom:loaded", function() { 
		$$('body')[0].addClassName("is_ie");
		if(isBrowser("MSIE", 6))
			$$('body')[0].addClassName("is_ie6");
		if(isBrowser("MSIE", 7))
			$$('body')[0].addClassName("is_ie7");
		if(isBrowser("MSIE", 8))
			$$('body')[0].addClassName("is_ie8");
	});
}

function isBrowser(app, ver)
{
	if(app && ver)
	{
		if(navigator.userAgent.indexOf(app + " " + ver) !== -1)
			return true;
	} else if(app) {
		if(navigator.userAgent.indexOf(app) !== -1)
			return true;
	}
	return false;
}