function getURL(){
alert('Yes');
var my_urls = [
"http://www.concept12.de",
"http://www.asian-garden-and-art.de",
"http://www.wilde-heizungsbau.de",
"http://www.theater-unter-den-sternen.de"];

return (my_urls.array_rand(1));
alert (my_urls.array_rand(1));
}