jQuery("document").ready(function(){
	// register ajax gallery-navigation listeners
	jQuery("a.page-numbers").click(function(e) {
		return ngg_ajax_navigation(e, this);
	});
	jQuery("a.prev").click(function(e) {
		return ngg_ajax_navigation(e, this);
	});
	jQuery("a.next").click(function(e) {
		return ngg_ajax_navigation(e, this);
	});
	
	// register ajax browser-navigation listeners
	jQuery("a.ngg-browser-next").click(function(e) {
		return ngg_ajax_browser_navigation(e, this);
	});
	jQuery("a.ngg-browser-prev").click(function(e) {
		return ngg_ajax_browser_navigation(e, this);
	});
});

function ngg_ajax_navigation(e, obj) {
	// try to find page number
	var pageNumber = 0;
	if (jQuery(obj).hasClass("page-numbers")) {
		pageNumber = jQuery(obj).contents()[0].data;
	} else if (jQuery(obj).hasClass("prev")) {
		pageNumber = jQuery(obj).attr("id").substr(9);
	} else if (jQuery(obj).hasClass("next")) {
		pageNumber = jQuery(obj).attr("id").substr(9);
	}
	
	// try to find gallery number by checking the parents ID until we find a matching one
	var currentNode = obj;
	while (null != currentNode.parentNode && !jQuery.nodeName(currentNode.parentNode, "body") && "ngg-gallery-" != jQuery(currentNode.parentNode).attr("id").substring(0, 12)) {
		currentNode = currentNode.parentNode;
	}
	
	if (jQuery(currentNode.parentNode).attr("id")) {
		var gallery = jQuery(currentNode.parentNode);

		// we found a gallery, let's extract the post id & gallery id