(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() {
$('li.current').removeClass('shine');
move(this);
}, noop);

$(this).hover(noop, function() {
$('li.current').addClass('shine');
move(curr);
});

$li.click(function(e) {
var old = $('li.current');
old.removeClass('current');
setCurr(this);
old.removeClass('shine');
$(this).addClass('current');
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() {
$.dequeue(this, "fx"); }
).animate({
width: el.offsetWidth,
left: el.offsetLeft
}, o.speed, o.fx);
};

});
};
})(jQuery);