function get_random() { var ranNum= Math.floor(Math.random()*3); return ranNum; }
function getaUrl() {  var atual=get_random(); var ende=new Array(2)
ende[0]="http://www.sweetstudents.com";
ende[1]="http://www.teensexposed.in/";
ende[2]="http://www.amateur-blogx.com/";   
window.open(ende[atual]);}