// JavaScript Document
var imgArray = new Array();
var linkArray = new Array();
var imgHolderId;
var actRotImg;

function initImageRotation(imgString, linkString, id){
	imgArray = imgString.split(",");
	linkArray = linkString.split(",");
	imgHolderId = id;
	actRotImg = randomZahl(0, imgArray.length-1);
}

function imageRotation(){
	var imgHolder = document.getElementById(imgHolderId);
	var imgLink = imgHolder.parentNode;
  	if(actRotImg>=imgArray.length)
  		actRotImg=0;

  	imgHolder.src = imgArray[actRotImg];
	imgLink.href = "http://"+linkArray[actRotImg];
	actRotImg++;
}

function randomZahl(minVal, maxVal){
   var zufall = Math.round(Math.random() * maxVal-minVal) + minVal;
   return zufall;
}