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 = '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}
}();