var Browser = {
	Engine: {'name': 'unknown', 'version': ''},
	Platform: {'name': (navigator.platform.match(/mac|win|linux|nix/i) || ['other'])[0].toLowerCase()},
	Features: {'xhr': !!(window.XMLHttpRequest), 'xpath': !!(document.evaluate)}
};

if (Prototype.Browser.Opera) Browser.Engine.name = 'presto';
else if (window.ActiveXObject) Browser.Engine = {'name': 'trident', 'version': (Browser.Features.xhr) ? 5 : 4};
else if (!navigator.taintEnabled) Browser.Engine = {'name': 'webkit', 'version': (Browser.Features.xpath) ? 420 : 419};
else if (document.getBoxObjectFor != null) Browser.Engine.name = 'gecko';
Browser.Engine[Browser.Engine.name] = Browser.Engine[Browser.Engine.name + Browser.Engine.version] = true;
Browser.Platform[Browser.Platform.name] = true;