var menu=function(){
	var t=15,z=50,s=6,a;
	function dd(n){
		this.n=n;
		this.h=[];
		this.c=[]
	}
	dd.prototype.init=function(p,c){
		a=c;
		var w=document.getElementById(p), s=w.getElementsByTagName('ul'), l=s.length, i=0;
		for(i;i<l;i++){
			var h=s[i].parentNode;
			this.h[i]=h;
			this.c[i]=s[i];
			h.onmouseover=new Function(this.n+'.st('+i+',true)');
			h.onmouseout=new Function(this.n+'.st('+i+',false)');
		}
	}
	dd.prototype.st=function(x,f){
		var c=this.c[x], h=this.h[x],
		p=h.getElementsByTagName('a')[0];
		clearInterval(c.t);
		c.style.overflow='hidden';
		if(f){
			p.className+=' '+a;
			if(!c.mh){
				c.style.display='block';
				c.style.height='';
				c.mh=c.offsetHeight;
				c.style.height=0
			}
			if(c.mh==c.offsetHeight){
				c.style.overflow='visible'
			}else{
				c.style.zIndex=z;
				z++;
				c.t=setInterval(function(){sl(c,1)},t)
			}
		}else{
			p.className=p.className.replace(a,'');
			c.t=setInterval(function(){sl(c,-1)},t)
		}
	}
	function sl(c,f){
		var h=c.offsetHeight;
		if((h<=0&&f!=1)||(h>=c.mh&&f==1)){
			if(f==1){
				c.style.filter='';
				c.style.opacity=1;
				c.style.overflow='visible'
			}
			clearInterval(c.t); return
		}
		var d=(f==1)?Math.ceil((c.mh-h)/s):Math.ceil(h/s), o=h/c.mh;
		c.style.opacity=o;
		c.style.filter='alpha(opacity='+(o*100)+')';
		c.style.height=h+(d*f)+'px'
	}
	return{dd:dd}
}();