zoom = function(a) {
	jdom("zoom-image").style.backgroundImage = '';
	var src = a.firstChild.firstChild.src.replace(/(\/[^\/]+\.(?:jpg|gif))$/, "/big$1").toLowerCase();
	jdom("zoom-image").style.backgroundImage = "url('" + src + "')";
	if (! zoom.win)
	{
		zoom.win = new jmodal.window("zoom", "zoom", 570, 500);
	}
	zoom.win.open();
}