detect browser

function browser() {
	var ua = navigator.userAgent;

	if (ua.search(/MSIE/) != -1) return 'Internet Explorer';
	if (ua.search(/Firefox/) != -1) return 'Firefox';
	if (ua.search(/Opera/) != -1) return 'Opera';
	if (ua.search(/Chrome/) != -1) return 'Google Chrome';
	if (ua.search(/Safari/) != -1) return 'Safari';
	if (ua.search(/Konqueror/) != -1) return 'Konqueror';
	if (ua.search(/Iceweasel/) != -1) return 'Debian Iceweasel';
	if (ua.search(/SeaMonkey/) != -1) return 'SeaMonkey';
	if (ua.search(/Gecko/) != -1) return 'Gecko';
	return 'Search Bot';
}