// JavaScript Document
rnd.today=new Date();
rnd.seed=rnd.today.getTime();

function rnd() {
         rnd.seed = (rnd.seed*9301+49297) % 233280;
         return rnd.seed/(233280.0);
};

function rand(number) {
         return Math.ceil(rnd()*number);
};

var number=rand(2)-1
var url="URL"
if (number == 0) {src="img/schaukasten_11.jpg";url="http://www.frischr.com/socialmediaschmiede/";};
if (number == 1) {src="img/schaukasten_12.jpg";url="http://www.frischr.com/socialmediaschmiede/seminare";};
function go() {
location.href=url;
}