var img = new Array();
var imgNo = 1;    
var imgEnd = 10; 
var imgDelay = 5000;

// pre-load
function preloadImgs() {
if(document.images)
{
   for(i = 1; i <= imgEnd; i++)
   {
     img[i] = new Image();
     img[i].src = "images/zimmer0" + i + ".jpg";
   }
}}

// bildwechsel
function changeImgs()
{
   imgNo++;
   document.getElementById("headerimg").src = img[imgNo].src;
   if(imgNo == imgEnd)
   imgNo = 0;
}


// start
function slideShow()
{
start = setInterval("changeImgs()", imgDelay);
}