(function($){
    $.fn.lavaLamp=function(o){
        o=$.extend({
            fx:"linear",
            speed:500,
            click:function(){}
            },o||{});return this.each(function(){
            var b=$(this),noop=function(){},$back=$('<li class="back"><div class="left"></div></li>').appendTo(b),$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(a){
                $back.css({
                    "left":a.offsetLeft+"px",
                    "width":a.offsetWidth+"px"
                    });curr=a
                };function move(a){
                $back.each(function(){
                    $.dequeue(this,"fx")
                    }).animate({
                    width:a.offsetWidth,
                    left:a.offsetLeft
                    },o.speed,o.fx)
                }
            })
        }
    })(jQuery);