imgSwap = new Object();

imgSwap.init = function () {
	
	for ( i = 1 ; i <= 3 ; i++ )
	{	
		heavyImage = new Image(); 
		heavyImage.src = "../img/foto/"+i+".jpg";
	}
	
}

function extendLinksForLightbox() {

	var links = document.getElementsByTagName("a");

	//	dodawanie do linków jpg rel="lightbox"
	for ( var i=0 ; i < links.length ; i++ ) {
		var href = links[i].href;
		var ext = '.jpg';
		var contains = href.match(ext);
		if(contains) {
			if ( links[i].target != '_blank' ) 	links[i].rel="lightbox";
		}
	}
	
	//	dodawanie do linków pdf target="_blank"
	for ( var i=0 ; i < links.length ; i++ ) {
		var href = links[i].href;
		var ext = '.pdf';
		var contains = href.match(ext);
		if(contains) {
			links[i].target="_blank";
		}
	}
	
}