function subNav() {
	if (document.all) {
		nodeList = $("buttons").getElementsByTagName('li');
		nodes = $A(nodeList);
		nodes.each(function(node) {
			elem = $A(document.getElementsByClassName('sub-buttons', node));
			if (elem.length == 0) {
				elem = $A(document.getElementsByClassName('sub-sub-buttons', node));
			}
			if (elem.length > 0) {
				if (elem.length > 0) {
					node.onmouseover=function() {
						Element.addClassName(this, 'over');

					}
					node.onmouseout=function() {
						Element.removeClassName(this, 'over');
					}
				}
			}
		});
	}
}