/* Expando Image Script ©2008 John Davenport Scheuer
as first seen in http://www.dynamicdrive.com/forums/
username: jscheuer1 - This Notice Must Remain for Legal Use
*/

if (document.images) {
    (function() {
        var cos, a = /Apple/.test(navigator.vendor), times = a ? 1 : 1, speed = a ? 1 : 1;
        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);
        }
    })();
}