检测 浏览器

var browserString;
var detect = navigator.userAgent.toLowerCase();

function detectBrowser() {
	var browser,version;

	if (checkBrowserString('konqueror')) browser = "Konqueror";
	else if (checkBrowserString('safari')) browser = "Safari"
	else if (checkBrowserString('omniweb')) browser = "OmniWeb"
	else if (checkBrowserString('opera')) browser = "Opera"
	else if (checkBrowserString('webtv')) browser = "WebTV";
	else if (checkBrowserString('icab')) browser = "iCab"
	else if (checkBrowserString('msie')) browser = "Internet Explorer"
	else if (!checkBrowserString('compatible')) {
		browser = "Mozilla"
		version = detect.charAt(8);
	}
	else browser = "Unknown";

	if (!version) version = detect.charAt(place + browserString.length);
	return browser + " " + version;
}