function swapMenu() {
if (navigator.userAgent.match(/Opera (\S+)/)) {
var operaVersion = parseInt(navigator.userAgent.match(/Opera (\S+)/)[1]);}
if (!document.getElementById||operaVersion <7) return;
var imgarr=document.getElementsByTagName('img');
var imgPreload=new Array();
var imgSrc=new Array();
var imgClass=new Array();
for (i=0;i<imgarr.length;i++){
if (imgarr[i].className.indexOf('imgswap')!=-1){
imgSrc[i]=imgarr[i].getAttribute('src');
imgClass[i]=imgarr[i].className;
imgPreload[i]=new Image();
if (imgClass[i].match(/imgswap (\S+)/)) {
imgPreload[i].src = imgClass[i].match(/imgswap (\S+)/)[1]}
imgarr[i].setAttribute('xsrc', imgSrc[i]);
imgarr[i].onmouseover=function(){mouseOverMe(this);}
imgarr[i].onmouseout=function(){mouseOutMe(this);}}}}
function mouseOverMe(obj){obj.setAttribute('src',obj.className.match(/imgswap (\S+)/)[1])}
function mouseOutMe(obj){obj.setAttribute('src',obj.getAttribute('xsrc'))}
swapMenu();