<!--
var imgs = ["kopje_6.jpg", "kopje_7.jpg", "kopje_8.jpg", "kopje_9.jpg", "kopje_10.jpg", "kopje_11.jpg", "kopje_12.jpg", "kopje_13.jpg", "kopje_14.jpg", "kopje_15.jpg"]; // link images
var img = []; // preloading array
var len = (imgs.length); // length
var timeBasis = 5; // in seconds
// preload images
for(i=0; i<imgs.length; i++){
img[i] = new Image();
img[i].src = imgs[i];
}
function showAd(){
var rand = Math.floor(len*Math.random());
document.write('<a href="http://www.weekendhike.nl" title="Go to weekendhike.nl" id="myAd">');
document.write('<img src="'+img[rand].src+'" border="0" name="myAdImg"></a>');
setInterval("updateAd()", timeBasis*1000);
}
function updateAd(){
var r = Math.floor(len*Math.random());
document.images['myAdImg'].src = img[r].src;
}
//-->
