function dispSitenews() {
	document.getElementById("submenu").innerHTML = "";
	document.getElementById("sitenews").style.display = "block";
}

var browser = new Browser();

var activeButton = null;

if (browser.isIE)
	document.onmousedown = pageMousedown;
else
	document.addEventListener("mousedown", pageMousedown, true);

function Browser() {

	var ua, s, i;

	this.isIE    = false;  // Internet Explorer
	this.isNS    = false;  // Netscape
	this.version = null;

	ua = navigator.userAgent;

	s = "MSIE";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isIE = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}

	s = "Netscape6/";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isNS = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}

	// Treat any other "Gecko" browser as NS 6.1.
	s = "Gecko";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isNS = true;
		this.version = 6.1;
		return;
	}
}

function buttonClick(event, menuId) {
	var button;

	if (browser.isIE)
		button = window.event.srcElement;
	else
		button = event.currentTarget;

	button.blur();

	if (button.menu == null) {
		button.menu = document.getElementById(menuId);
		if (button.menu.isInitialized == null)
			menuInit(button.menu);
	}

	if (activeButton != null)
		resetButton(activeButton);

	if (button != activeButton) {
		depressButton(button);
		activeButton = button;
	}
	else
		activeButton = null;

	return false;
}


function menuInit(menu) {

	var itemList, spanList;
	var textEl, arrowEl;
	var itemWidth;
	var w, dw;
	var i, j;

	if (browser.isIE) {
		menu.style.lineHeight = "2.5ex";
		spanList = menu.getElementsByTagName("SPAN");
		for (i = 0; i < spanList.length; i++)
		if (hasClassName(spanList[i], "MENUITEMARROW")) {
			spanList[i].style.fontFamily = "Webdings";
			spanList[i].firstChild.nodeValue = "4";
		}
	}

	itemList = menu.getElementsByTagName("A");
	if (itemList.length > 0)
		itemWidth = itemList[0].offsetWidth;
	else
		return;

	for (i = 0; i < itemList.length; i++) {
		spanList = itemList[i].getElementsByTagName("SPAN");
		textEl  = null;
		arrowEl = null;
		for (j = 0; j < spanList.length; j++) {
			if (hasClassName(spanList[j], "MENUITEMTEXT"))
				textEl = spanList[j];
			if (hasClassName(spanList[j], "MENUITEMARROW"))
				arrowEl = spanList[j];
		}
		if (textEl != null && arrowEl != null)
			textEl.style.paddingRight = (itemWidth - (textEl.offsetWidth + arrowEl.offsetWidth)) + "px";
	}

	if (browser.isIE) {
		w = itemList[0].offsetWidth;
		itemList[0].style.width = w + "px";
		dw = itemList[0].offsetWidth - w;
		w -= dw;
		itemList[0].style.width = w + "px";
	}

	menu.isInitialized = true;
}

function depressButton(button) {

	var x, y;

	x = getPageOffsetLeft(button);
	y = getPageOffsetTop(button) + button.offsetHeight;

	button.menu.style.left = x + "px";
	button.menu.style.top  = y + "px";
	button.menu.style.visibility = "visible";
}

function getPageOffsetLeft(el) {

	var x;

	x = el.offsetLeft;
	if (el.offsetParent != null)
		x += getPageOffsetLeft(el.offsetParent);

	return x;
}

function getPageOffsetTop(el) {

	var y;

	y = el.offsetTop;
	if (el.offsetParent != null)
		y += getPageOffsetTop(el.offsetParent);

	return y;
}

function pageMousedown(event) {

	var el;

	if (activeButton == null)
		return;

	if (browser.isIE)
		el = window.event.srcElement;
	else
		el = (event.target.tagName ? event.target : event.target.parentNode);

	if (el == activeButton)
		return;

	if (getContainerWith(el, "DIV", "MENU") == null) {
		resetButton(activeButton);
		activeButton = null;
	}
}

function getContainerWith(node, tagName, className) {

	while (node != null) {
		if (node.tagName != null && node.tagName == tagName && hasClassName(node, className))
			return node;
		node = node.parentNode;
	}

	return node;
}

function resetButton(button) {

//	removeClassName(button, "MENUBUTTONACTIVE");
	if (button.menu != null) {
		closeSubMenu(button.menu);
		button.menu.style.visibility = "hidden";
	}
}

function closeSubMenu(menu) {

	if (menu == null || menu.activeItem == null)
		return;

	if (menu.activeItem.subMenu != null) {
		closeSubMenu(menu.activeItem.subMenu);
		menu.activeItem.subMenu.style.visibility = "hidden";
		menu.activeItem.subMenu = null;
	}
//	removeClassName(menu.activeItem, "MENUITEMHIGHLIGHT");
	menu.activeItem = null;
}

function hasClassName(el, name) {

	var i, list;

	list = el.className.split(" ");
	for (i = 0; i < list.length; i++)
		if (list[i] == name)
			return true;

	return false;
}

function LinkClick() {
	if (activeButton != null)
		resetButton(activeButton);

	activeButton = null;
}