function __roll() { var image_class=new Array(); var image_preload=new Array(); var image_source=new Array(); var image_array=document.getElementsByTagName('img');
	if (navigator.userAgent.match(/Opera (\S+)/)){var operaVersion = parseInt(navigator.userAgent.match(/Opera (\S+)/)[1]);}
	if (!document.getElementById||operaVersion <7) {return;}	
	for (i=0;i<image_array.length;i++){if (image_array[i].className.indexOf('imageroll')!=-1){
			image_source[i]=image_array[i].getAttribute('src'); image_class[i]=image_array[i].className; image_preload[i]=new Image();
			if (image_class[i].match(/imageroll (\S+)/)) {image_preload[i].src = image_class[i].match(/imageroll (\S+)/)[1]}
			image_array[i].setAttribute('xsrc', image_source[i]);
			image_array[i].onmouseover=function(){this.setAttribute('src',this.className.match(/imageroll (\S+)/)[1])}
			image_array[i].onmouseout=function(){this.setAttribute('src',this.getAttribute('xsrc'))}}}} 
	__roll();