var ie_timeout;

var menu=function(){
    var ie=null;
	var t=15,z=50,s=6,a;
	function dd(n){this.n=n; this.h=[]; this.c=[]}
	dd.prototype.init=function(p,c){
	    ie = (navigator.userAgent.indexOf('MSIE')!=-1) ? true : false;
		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)');
			if (!ie) 
			 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 (!ie) {
		  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)}
		} else {
		 var ie_dd_menu = document.getElementById("ie_dd_menu");
		 if (f) {
		  if (ie_timeout)
		   clearTimeout(ie_timeout);
		  ie_dd_menu.innerHTML = '<ul>' +c.innerHTML+'</ul>';
		  ie_dd_menu.style.display = 'block';
		  var shift = document.getElementById('container').offsetLeft;
		  ie_dd_menu.style.left = c.parentNode.offsetLeft + shift;
		  ie_timeout = window.setTimeout('cl()', 1000);
		  } else {
		  ie_dd_menu.innerHTML = '';
		  ie_dd_menu.style.display = 'none';		  
		  }
		}
	}
	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}
}();

function cl() {
 document.getElementById('ie_dd_menu').style.display = 'none';
}
function ie_in() {
  var ie = (navigator.userAgent.indexOf('MSIE')!=-1) ? true : false;
  if (ie) {
   clearTimeout(ie_timeout);
  }
}
function ie_out() {
  var ie = (navigator.userAgent.indexOf('MSIE')!=-1) ? true : false;
  if (ie) {
   ie_timeout = window.setTimeout('cl()', 500);
  }
}