if (!document.addEvent) {
	function addEvent(elm, evType, fn, useCapture) {
		if (elm.addEventListener) {
			elm.addEventListener(evType, fn, useCapture);
			return true;
		} else if (elm.attachEvent) {
			var r = elm.attachEvent('on' + evType, fn);
			return r;
		} else {
			elm['on' + evType] = fn;
		}
	}
}

var currentShow = -1;
function nav_init() {
	if (!(document.all && document.getElementById)) {
		return;
	}
	
	var menuUL = document.getElementById("container-nav").getElementsByTagName("ul")[0];
	
	var liItems = menuUL.getElementsByTagName("li");
	for (i=0; i<liItems.length; i++) {
		if (liItems[i].parentNode != menuUL || currentShow == i) {
			continue;
		}
		
		liItems[i].onmouseover = function() {
			if (this.getElementsByTagName("ul")[0]) {
				this.getElementsByTagName("ul")[0].style.display = "block";
			}
		}
		liItems[i].onmouseout = function() {
			if (this.getElementsByTagName("ul")[0]) {
				this.getElementsByTagName("ul")[0].style.display = "none";
			}
		}
	}
	

}
addEvent(window, 'load', nav_init, false);