Odnośnik w menu JavaScript nie działa

Witam, robię stronkę i mam menu wykonane w JavaScripcie. Niestety, odnośnik umieszczony w nim nie działa, dopóki JS jest włączone.

Strona: www.grafa3d.republika.pl/POD/index.html

Kod:

<script type="text/javascript" language="JavaScript"></script>

<style type="text/css" media="screen">
  @import url('main.css');
  @import url('menu.css');
</style>

<script src="mootools.js" type="text/javascript" charset="utf-8"></script>  
<script src="menu.js" type="text/javascript" charset="utf-8"></script>   
<script src="main.js" type="text/javascript" charset="utf-8"></script>
<center>
<img src="images/logo.gif" alt="Logo" width="700" height="129" align="top" />
<div id="fancymenu">
  <ul>                                                               
    <li class="current" id="menu_glowna"><a href="index.html">Strona glowna</a></li>

    <li id="menu_biografia"><a href="biografia.html">Biografia</a></li>
    <li id="menu_sklad"><a href="#">Sklad</a></li>
    <li id="menu_dyskografia"><a href="#">Dyskografia</a></li>   
    <li id="menu_media"><a href="#">Media</a></li>
    <li id="menu_forum"><a href="#">Forum</a></li>  
  </ul>    
</div> 

<div align="center">
  
  <a href="images/photo2.jpg" target="_blank">

</a> </div>

var SlideList = new Class({
	initialize: function(menu, options) {
		this.setOptions(this.getOptions(), options);
		
		this.menu = $(menu), this.current = this.menu.getElement('li.current');
		
		this.menu.getElements('li').each(function(item){
			item.addEvent('mouseover', function(){ this.moveBg(item); }.bind(this));
			item.addEvent('mouseout', function(){ this.moveBg(this.current); }.bind(this));
			item.addEvent('click', function(event){ this.clickItem(event, item); }.bind(this));
		}.bind(this));
				
		this.back = new Element('li').addClass('background').adopt(new Element('div').addClass('left')).injectInside(this.menu);
		this.back.fx = this.back.effects(this.options);
		if(this.current) this.setCurrent(this.current);
	},
	
	setCurrent: function(el, effect){
		this.back.setStyles({left: (el.offsetLeft)+'px', width: (el.offsetWidth)+'px'});
		(effect) ? this.back.effect('opacity').set(0).start(1) : this.back.setOpacity(1);
		this.current = el;
	},
	
	getOptions: function(){
		return {
			transition: Fx.Transitions.sineInOut,
			duration: 500, wait: false,
			onClick: Class.empty
		};
	},

	clickItem: function(event, item) {
		if(!this.current) this.setCurrent(item, true);
		this.current = item;
		this.options.onClick(new Event(event), item);
	},

	moveBg: function(to) {
		if(!this.current) return;
		this.back.fx.custom({
			left: [this.back.offsetLeft, to.offsetLeft],
			width: [this.back.offsetWidth, to.offsetWidth]
		});
	}
});

SlideList.implement(new Options);

main.js:

window.addEvent('domready', function() {
	// orange menu demo
	if($('fancymenu'))
		FancyExample = new SlideList($E('ul', 'fancymenu'), {transition: Fx.Transitions.backOut, duration: 700, onClick: function(ev, item) { ev.stop(); }});
	
	// profile demo
	if($('pictureselect')) PictureSelect = new SlideList('pictureselect', { onClick: function(ev, item) { ev.stop(); } });

});

menu.css:

#fancymenu {
	position: center;
	height: 29px;
	width: 500px;
	background: url('images/bg.gif') no-repeat top;
	padding: 15px;
	margin: 10px 0;
	overflow: hidden;
}

#pictureselect {
	position: relative;
	height: 1%; /* ie bug */
}

#fancymenu ul, #pictureselect {
	padding: 0;
	margin: 0;
}

/* Don't apply padding here (offsetWidth will differ in IE)
    If you need padding add it to the child anchor */
#fancymenu ul li, #pictureselect li {
	float: left;
	list-style: none;
}

#fancymenu ul li a, #pictureselect li a  {
	text-indent: -500em;
	z-index: 10;
	display: block;
	float: left;
	height: 30px;
	position: relative;
	overflow: hidden;
}

#pictureselect li {
	height: 54px;
}

#pictureselect li a {
	height: 54px;
	width: 62px;
}

#menu_glowna a {
	width: 78px;
	background: url('images/menu_glowna.png') no-repeat center !important;	
}

#menu_biografia a {
	width: 96px;
	background: url('images/menu_biografia.png') no-repeat center !important;	
}

#menu_sklad a {
	width: 66px;
	background: url('images/menu_sklad.png') no-repeat center !important;	
}

#menu_dyskografia a {
	width: 116px;
	background: url('images/menu_dyskografia.png') no-repeat center !important;	;
}

#menu_media a {
	width: 66px;
	background: url('images/menu_media.png') no-repeat center !important;	
}

#menu_forum a {
	width: 71px;
	background: url('images/menu_forum.png') no-repeat center !important;	
}

#nopicture a {
	background: url('images/no_picture.gif') no-repeat center;
}

#picture_1 a {
	background: url('images/picture_1.jpg') no-repeat center;
}

#picture_2 a {
	background: url('images/picture_2.jpg') no-repeat center;
}

#picture_3 a {
	background: url('images/picture_3.jpg') no-repeat center;
}

#picture_4 a {
	background: url('images/picture_4.jpg') no-repeat center;
}

#fancymenu li.background {
	background: url('images/bg_menu_right.png') no-repeat top right !important;
	background: url('images/bg_menu_right.gif') no-repeat top right;
	z-index: 8;
	position: absolute;
	visibility: hidden;
}

#fancymenu .background .left {
	background: url('images/bg_menu.png') no-repeat top left !important;
	background: url('images/bg_menu.gif') no-repeat top left;
	height: 30px;
	margin-right: 9px; /* 7px is the width of the rounded shape */
}

#pictureselect li.background {
	background: url('images/bg_images.gif') no-repeat top;
	z-index: 8;
	position: absolute;
	width: 53px;
	visibility: hidden;
}

#pictureselect li.background .left { display: none; }

#userprofile {
	margin-top: 15px;
	background: url('images/bg_form.gif') no-repeat top left;
	width: 360px;
	height: 180px;
	overflow: hidden;
	padding: 0 15px;
}

#userprofile h4 {
	font: bold 11px Verdana;
	margin-bottom: 10px;
}

#userprofile p.input {
	background: #EBEBEB;
	overflow: hidden;
	padding: 0 !important;
	padding: 2px 0;
}

#userprofile p.input input {
	display: block;
	margin: 3px;
	width: 348px;
	border: 1px solid #D4D4D4;
	padding: 3px 0 3px 4px;
}

#userprofile p.input input:focus {
	border: 1px solid #999;
}

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