/**
 * LavaLamp - A menu plugin for jQuery with cool hover effects.
 * @requires jQuery v1.1.3.1 or above
 *
 * http://gmarwaha.com/blog/?p=7
 *
 * Copyright (c) 2007 Ganeshji Marwaha (gmarwaha.com)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Version: 0.2.0
 * Requires Jquery 1.2.1 from version 0.2.0 onwards. 
 * For jquery 1.1.x, use version 0.1.0 of lavalamp
 */
/*
 * Módosítva, hogy ha nincs első elem, ie alatt ne legyen bugos.
 * Molnár Sándor 2009.04.30.
 */
(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) {
            if(el.offsetLeft>0 && el.offsetWidth>0) $back.css({ "left": el.offsetLeft+7+"px", "width": el.offsetWidth-15+"px" });
                else $back.css({ "left": 0+"px", "width": 0+"px" });
            curr = el;
        };

        function move(el) {
            
           // alert(el.offsetLeft+' '+el.offsetWidth);
            var szel=el.offsetWidth-15;
            var bal=el.offsetLeft+7;
            if(szel<=0) szel=0;
            if(bal<=0) bal=0;
            if((szel>0) && (bal>0)){
            $back.each(function() {
                $(this).dequeue(); }
            ).animate({
                width: szel,
                left: bal
            }, o.speed, o.fx);
            }
            else{
               $back.each(function() {
                $(this).dequeue(); }
            ).animate({
                width: szel,
                left: bal
            }, o.speed);
            }
        };
    });
};
})(jQuery);