// JavaScript Document

function check_browser() {

var useragent = navigator.userAgent;
var BrowserName = (useragent.indexOf('Opera')
// Zeilenumbruch entfernen
> -1) ? 'Opera' : navigator.appName;
var pos = useragent.indexOf('MSIE');
if (pos > -1) {
BrowserVersion = useragent.substring(pos + 5);
var pos = BrowserVersion.indexOf(';');
var BrowserVersion = BrowserVersion.substring(0,pos);
browser="ie";
}
var pos = useragent.indexOf('Opera');
if (pos > -1)   {
BrowserVersion = useragent.substring(pos + 6);
var pos = BrowserVersion.indexOf(' ');
var BrowserVersion = BrowserVersion.substring(0, pos);
browser="op";
}
if (BrowserName == "Netscape") {
var BrowserVersion = useragent.substring(8);
var pos = BrowserVersion.indexOf(' ');
var BrowserVersion = BrowserVersion.substring(0, pos);
browser="ns4";
}
if (BrowserName == "Netscape" & parseInt(navigator.appVersion) >= 5) {
var pos = useragent.lastIndexOf('/');
var BrowserVersion = useragent.substring(pos + 1);
browser="n6";
}

return browser
}