1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:

...
var url:String = "domain.de";
...
displayURL.text = "swf location is external!"
        doubleSlash = _url.indexOf("//");
        server = _url.substr(doubleSlash+2, _url.indexOf("/", doubleSlash+2)-doubleSlash-2);

        if (server.indexOf("www.")<>-1) {
            server = server.substr(server.indexOf("www.")+4, server.length);
        };

        if (server.indexOf(url)<>-1) {
            displayURL.text = server+": url richtig";
        } else {
            displayURL.text = server+": url falsch";
        };
...