var accordion=function(){
	var tm=sp=10;
	function slider(n){this.nm=n; this.arr=[]}
	
	var initFlg = false;
	
	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.style.height = "auto";
			d.mh = d.offsetHeight;
			if(c!=i){
				d.style.height=0;
				if ( initFlg == false ) 
					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)
			c.style.height = "auto";
			c.mh = c.offsetHeight;
		}
		else if(f!=1&&h==1){
			c.style.display='none';
			clearInterval(c.tm)
		}
	}
	return{slider:slider}
}();