$(function() {
	$('#content-holder div.img div.small img').click(function() {
		var $this = $(this);
		var bigImg = $this.parents('.small').siblings('.middle').find('img');
		bigImg.attr('src', $this.attr('src').replace('small', 'middle'));
	});
	
	$('#content-holder div.img div.middle img').bind('click', showPopupImage);
	
	function showPopupImage() {
		var large = new Image();
		large.src = $(this).attr('src').replace('middle', 'big');
		var url = large.src;
		var width = large.width;
		var height = large.height;
		var left = (window.innerWidth - width) / 2;
		var top = (window.innerHeight - height) / 2;
		newwindow=window.open(url,'name','height=' + height + ',width=' + width + ', resizable=0,menubar=0,toolbar=0,location=0,status=0,statusbar=0,scrollbars=0');
		newwindow.moveTo(left,top);
		if (window.focus) {
			newwindow.focus();
		}
	}
});