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+')');
		  }
	}
	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='visible';
		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)
					c.style.overflow='hidden';
			}
	}
	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}
}();