(function($) {$.fn.lavaLamp = function(o) {o = $.extend({ fx: "linear", speed: 500, click: function(){} }, o || {});return this.each(function() {var me = $(this), noop = function(){},$back = $('<li class="back"><div class="left"></div></li>').appendTo(me),$li = $("li", this), curr = $("li.current", this)[0] || $($li[0]).addClass("current")[0];$li.not(".back").hover(function() {move(this);}, noop);$(this).hover(noop, function() {move(curr);});$li.click(function(e) {setCurr(this);return o.click.apply(this, [e, this]);});setCurr(curr);function setCurr(el) {$back.css({ "left": el.offsetLeft+"px", "width": el.offsetWidth+"px" });curr = el;};function move(el) {$back.each(function() {$(this).dequeue(); }).animate({width: el.offsetWidth,left: el.offsetLeft}, o.speed, o.fx);};});};})(jQuery);