function initPage()
{
	var _nav = document.getElementById('nav');
	if (_nav) {
		var _nodes = _nav.getElementsByTagName('li');
		for (var i=0; i<_nodes.length; i++) {
			_nodes[i].onmouseover = function(){
				if (this.className.indexOf('hover') == -1)
					this.className += ' hover';
					
				if (this.getElementsByTagName('ul')[0]) {
					if (_nav.className.indexOf('over') == -1)
						_nav.className += ' over';
				}
			}
			_nodes[i].onmouseout = function(){
				this.className = this.className.replace('hover','');
				if (this.getElementsByTagName('ul')[0]) {
					_nav.className = _nav.className.replace('over','');
				}
			}
		}
	}
}
if (window.addEventListener)
	window.addEventListener("load", initPage, false);
else if (window.attachEvent)
	window.attachEvent("onload", initPage);