Browser feature inference

browse.js

browser = {
	ieVersion: function () {
		var undef;
		var v = 3;
		var div = document.createElement('div');
		var all = div.getElementsByTagName('i');
		while (
		div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->', all[0]);
		return v > 4 ? v : undef;
	},
	hasFlash: function () {
		try {
			return new ActiveXObject('ShockwaveFlash.ShockwaveFlash') ? true : false;
		} catch (e) {
			return navigator.mimeTypes["application/x-shockwave-flash"] !== undefined ? true : false;
		}
	}
}