// JavaScript Document
/* 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? 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 = im.alt;
			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);
  }
 })();
}