var headerImageIndex = 1;
	
	function setHeaderImage(link) {
	
		// corrigir elemento
		if (link.tagName == "LI")
			link = $("a", link)[0];
				
		var url = $(link).attr("href");
			
		
		$("#search_pager li").removeClass("selected");
		
		
		$( link.parentNode ).addClass("selected");
		
		
 		$("#text-header-image").attr("src", url);
 		// se isto tiver mais do que o numero estamos tramados
 		headerImageIndex = parseInt(link.innerHTML);
		return false;
	}
	
	function setHeaderImagePrevious() {
		headerImageIndex --;
		if (headerImageIndex < 1) headerImageIndex = 1;
		var li =  $("#search_pager li:eq("+ (headerImageIndex) +")");
		setHeaderImage(li[0]);
	}
	
	function setHeaderImageNext() {
		var max = $("#search_pager li").size() - 2;	
		headerImageIndex ++;
		if (headerImageIndex > max) headerImageIndex = max;
		var li =  $("#search_pager li:eq("+ (headerImageIndex) +")");
		setHeaderImage(li[0]);
	}