/**
 * @author Wojtek
 */

 window.addEvent("domready", function(){
 	$$("img").each(function(el){
		
		var parent = el.getParent();
		if (parent.getProperty("href"))
		{
			var type = parent.getProperty("href").substr(-3);
			if (type == 'jpg' || type == 'gif' || type == 'JPG')
			{
				if(!parent.getProperty('rel'))
					parent.setProperty("rel", "lightbox");
			}
		}
	});
 });