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=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}
}();

document.getElementsByClassName = function (c, t) {
	t = this.getElementsByTagName(t ? t : "*");
	for (var i = 0, r = new Array(), l = t.length; i < l; i++)
	if (t[i].className == c)
	r[r.length] = t[i];
	return r;
}

var _Menus = new Array();
function initializeDateDropDowns(){
	var box = document.getElementsByClassName('menu','ul');
	if (box.length > 0) {
		for(i = 0; i < box.length; i++) {
			var id = box[i];
			_Menus[i] = new menu.dd('_Menus[' + i + ']');
			_Menus[i].init(id,"menuhover");
		}
	}
}
window.onload = initializeDateDropDowns;