var _nav = 'nav';
var _li = [];
function initPage()
{
	var accordion_block = document.getElementById(_nav);
	
	if(accordion_block)
	{
		_li = accordion_block.getElementsByTagName('li');
		if (_li.length) {
			for (var i=0; i<_li.length; i++) {
				if (_li[i].parentNode.id == _nav) {
					var _ul = _li[i].getElementsByTagName('ul');
					if (_ul.length) {
						//alert(i);
						_li[i]._ul = _ul[0];
						_li[i]._i = i;
						_li[i]._ul_h = _li[i]._ul.offsetHeight;
						_li[i]._ul.style.visibility = 'visible';
						_li[i]._ul.style.height = 0 + 'px';
						_li[i].mooeffect = new Fx.Styles($(_li[i]._ul), {duration:500});
						_li[i].onmouseover = function() {
							if (this._timerss) clearTimeout(this._timerss);
							this.mooeffect.stop();
							this.mooeffect.custom({'height':[this._ul.offsetHeight, this._ul_h]});
							
						}
						_li[i].onmouseout = function() {
							this._timerss = setTimeout('hide(' + this._i + ')',100);
							
						}
					}
				}
			}
		}
	}
}
function hide(_i) {
	_li[_i].mooeffect.stop();
	_li[_i].mooeffect.custom({'height': [0]});
	}
if (window.addEventListener)
	window.addEventListener("load", initPage, false);
else if (window.attachEvent)
	window.attachEvent("onload", initPage);