[RESOLVED] Accordion item will not reopen after closing

[metropolitica]

As stated in the thread title, my JS accordion items will not re-open after closing.

You can view it here.

XHTML item sample:

<div id="accordion">
   <dl class="accordion" id="slider">
      <dt>Item Heading</dt>
         <dd>                    
            <span>Sample accordion content.</span>
         </dd>
      </dt>
   </dl>
</div>

CSS:

#accordion {
	width: 100%;
	margin: 50px auto;
	border: none;
}
.accordion {
	width: 100%;
	font: 12px Verdana,Arial;
	color: #333;
}
.accordion dt {
	padding: 3px 1px;
	cursor: pointer;
	background-color: #fff;
	background-image: url('../images/arrow_down.gif');
	background-position: right center;
	background-repeat: no-repeat;
	color: #666;
}
.accordion dt:hover {
	background-color: #1883f1;
	color: #fff;
}
.accordion .open {
	background-color: #ddd;
	background-image: url('../images/arrow_up.gif');
	padding: 3px 10px;
}
.accordion dd {
	overflow: hidden;
	background-color: #f3f7fa;
	margin: 0;
	padding-left: 50px; 
	border-bottom: 1px solid #ddd;
}
.accordion span {
	display: block;
	border-top: none;
	padding: 15px;
}

Internal Javascript (before body tag)

<script type="text/javascript">
	var slider=new accordion.slider("slider");
	slider.init("slider",0,"open");
</script>

External Javascript

var accordion=function(){
	var tm=sp=10;
	function slider(n){this.nm=n; this.arr=[]}
	slider.prototype.init=function(t,c,k){
		var a,h,s,l,i; a=document.getElementById(t); this.sl=k?k:'';
		h=a.getElementsByTagName('dt'); s=a.getElementsByTagName('dd'); this.l=h.length;
		for(i=0;i<this.l;i++){var d=h[i]; this.arr[i]=d; d.onclick=new Function(this.nm+'.pro(this)'); if(c==i){d.className=this.sl}}
		l=s.length;
		for(i=0;i<l;i++){var d=s[i]; d.mh=d.offsetHeight; if(c!=i){d.style.height=0; d.style.display='none'}}
	}
	slider.prototype.pro=function(d){
		for(var i=0;i<this.l;i++){
			var h=this.arr[i], s=h.nextSibling; s=s.nodeType!=1?s.nextSibling:s; clearInterval(s.tm);
			if(h==d&&s.style.display=='none'){s.style.display=''; su(s,1); h.className=this.sl}
			else if(s.style.display==''){su(s,-1); h.className=''}
		}
	}
	function su(c,f){c.tm=setInterval(function(){sl(c,f)},tm)}
	function sl(c,f){
		var h=c.offsetHeight, m=c.mh, d=f==1?m-h:h; c.style.height=h+(Math.ceil(d/sp)*f)+'px';
		c.style.opacity=h/m; c.style.filter='alpha(opacity='+h*100/m+')';
		if(f==1&&h>=m){clearInterval(c.tm)}else if(f!=1&&h==1){c.style.display='none'; clearInterval(c.tm)}
	}
	return{slider:slider}
}();

Anyone that can help, it would be greatly appreciated.

[metropolitica]

I've realized the problem is with the CSS. Once I have the final CSS, I'll post it here as [resolved].

[metropolitica]

Okay, so it ended up being the border on the ".accordion dd". I dunno why, but everything is fine without it. I had put it there to properly separate an open accordion item with the closed one below it, but it isn't needed as the open item has a faint background color, and the heading below it has none.