var menu=function()
{
 var t=15,z=50,s=2,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='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}
}();