var menu = function() {
	var t = 5, 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}
}();