$(document).ready(function(){
		$('.img_partner img').hover(function() {
	        $(this).attr("src", $(this).attr("src").split(".").join("_on."));  // adds -hover to the name of the image
		  }, function() {
		        $(this).stop(true,false); // prevents the creation of stacked actions
		        $(this).attr("src", $(this).attr("src").split("_on.").join("."));  // removes -hover from the name of the image
		  });
		
		$('div#contents').each(function(){
			$(this).find('a.lightbox').lightBox({
				fixedNavigation:true,
				imageLoading: 'http://www.katynpamietamy.pl/images/lightbox-ico-loading.gif',
				imageBtnClose: 'http://www.katynpamietamy.pl/images/lightbox-btn-close.gif',
				imageBtnPrev: 'http://www.katynpamietamy.pl/images/lightbox-btn-prev.gif',
				imageBtnNext: 'http://www.katynpamietamy.pl/images/lightbox-btn-next.gif',
				imageBlank: 'http://www.katynpamietamy.pl/images/lightbox-blank.gif',
				txtImage: $(this).prev().text()
			});
				});
		
	});