if (document.images){
 (function() {
     var cos, a = /Apple/.test(navigator.vendor), times = a ? 20 : 40, speed = a ? 40 : 20;
     var expConIm = function(im) {
         im = im || window.event;
         if (!expConIm.r.test(im.className))
             im = im.target || im.srcElement || null;
         if (!im || !expConIm.r.test(im.className))
             return;
         var e = expConIm,
   widthHeight = function(dim) {
       return dim[0] * cos + dim[1] + 'px';
   },
   resize = function() {
       cos = (1 - Math.cos((e.ims[i].jump / times) * Math.PI)) / 2;
       im.style.width = widthHeight(e.ims[i].w);
       im.style.height = widthHeight(e.ims[i].h);
       if (e.ims[i].d && times > e.ims[i].jump) {
           ++e.ims[i].jump;
           e.ims[i].timer = setTimeout(resize, speed);
       } else if (!e.ims[i].d && e.ims[i].jump > 0) {
           --e.ims[i].jump;
           e.ims[i].timer = setTimeout(resize, speed);
       }
   }, d = document.images, i = d.length - 1;
         for (i; i > -1; --i)
             if (d[i] == im) break;
         i = i + im.src;
         if (!e.ims[i]) {
             im.title = '';
             e.ims[i] = { im: new Image(), jump: 0 };
             e.ims[i].im.onload = function() {
                 e.ims[i].w = [e.ims[i].im.width - im.width, im.width];
                 e.ims[i].h = [e.ims[i].im.height - im.height, im.height];
                 e(im);
             };
             e.ims[i].im.src = im.src;
             return;
         }
         if (e.ims[i].timer) clearTimeout(e.ims[i].timer);
         e.ims[i].d = !e.ims[i].d;
         resize();
     };

     expConIm.ims = {};

     expConIm.r = new RegExp('\\bexpando\\b');

     if (document.addEventListener) {
         document.addEventListener('mouseover', expConIm, false);
         document.addEventListener('mouseout', expConIm, false);
     }
     else if (document.attachEvent) {
         document.attachEvent('onmouseover', expConIm);
         document.attachEvent('onmouseout', expConIm);
     }
 })();
}