function openWindow(name, url, width, height) {
	var w = window.open(url, name, 'menubar=0,toolbar=0,statusbar=1,scrollbars=1,personalbar=0,location=no,width=' + width + ',height=' + height + ',resizable=1');
	w.focus();
	}
function changeImage(img) {
	var myImg = new Element('img', {id: 'myImg', src: '/images/cf/' + img, width: '100%'});
	myImg.onload = function() {
		var drop = $('adimage');
		drop.fade(1);
		drop.removeEvents();
		drop.empty();
		if (myImg.width < 400) {
			myImg.style.width = myImg.width + 'px';
			myImg.style.height = myImg.height + 'px';
			myImg.style.marginLeft = ((410 - myImg.width) / 2) + 'px';
			myImg.style.padding = '10px 0px';
			}
		myImg.inject(drop);
		};
	}