window.addEvent('domready', function(){
	var handler = $$('#header_rotation')[0];
	var header = $$('#header')[0];
	if(handler && header){
		var imgs = handler.getElements('span');
		var random = $random(0, imgs.length-1);
		if(imgs[random]){
			header.setStyle('background-image', 'url('+imgs[random].get('text')+')');
		}
	}

});