$(document).ready(function() {
	
	// background
	var randomnumber = Math.floor(Math.random()*5)
	$("body").addClass("bg"+randomnumber);
	
	// logo
	$("h1 a").append("<span></span>");

	// accordion
	$('#accordion').accordion({
		header: 'div.title',
		active: false,
		alwaysOpen: false,
		animated: false,
		autoheight: false
	});
	$("#accordion div.title").append("<div class='icon'></div>");

	// per fer vincles arq.html, topo.html i val.html als ul cal posar  class="opcions"
	$(".opcions a").click(function(){
          //Get the id of this clicked item                           
          identificator = $(this).parent("li").attr('id');                   
          $("#target").css("visibility","visible").load(identificator+".html", function() {
			$("a.close").click(function () {
				$("#target").css("visibility","hidden");	
			});
			if(identificator == "estudi"){
				$(document).ready(function() {
				// lightbox
				$(function() {
						$('ul#lightbox a').lightBox(); // Select all links in object with gallery ID
					});
				});
			}
		});		                        
     });
	
});