$.extend($.browser, {firefox: false});
if ($.browser.mozilla && navigator.userAgent.match(/Firefox\//i)) {
		$.browser.firefox = true;
}

//major.minor[.build[.revision]]
var parts = $.browser.version.split('.'), u,
	version = {
		major: (parts.length >= 1 ? parseInt(parts[0]): u),
		minor: (parts.length >= 2 ? parseInt(parts[1]): u),
		build: (parts.length >= 3 ? parseInt(parts[2]): u),
		revision: (parts.length >= 4 ? parseInt(parts[3]): u)
	};

$.browser.version = new String($.browser.version);

$.extend($.browser.version, version);