function Browser() {
var ua, s, i;
this.isIE = false;
this.isNS = false;
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;
}
}
var browser = new Browser();
//----------------------------------------------------------------------------
// Code for handling the menu bar and active button.
//----------------------------------------------------------------------------
var activeButton = true;
// Capture mouse clicks on the page so any active button can be
// deactivated.
if (browser.isIE) document.onmouseover = pageMouseover;
else document.addEventListener("mouseover", pageMouseover, true);

function pageMouseover(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 = true;
	}
}

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);
		menuInit(button.menu);
	}
	
	if (activeButton != null) resetButton(activeButton);
	
	if (button != activeButton) 
	{
		depressButton(button);
		activeButton = button;
	}
	else activeButton = null;
	
	return false;
}

function buttonMouseover(event, menuId) 
{
	var button;
	if (browser.isIE) button = window.event.srcElement;
	else button = event.currentTarget;
	
	if (activeButton != null && activeButton != button)
	buttonClick(event, menuId);
}

function depressButton(button) 
{
	var x, y;
	button.className += " menuButtonActive";
	x = getPageOffsetLeft(button);
	y = getPageOffsetTop(button) + button.offsetHeight;
	
	if (browser.isIE) 
	{
		x += button.offsetParent.clientLeft;
		y += button.offsetParent.clientTop;
	}
	
	button.menu.style.left = x + "px";
	button.menu.style.top = y + "px";
	button.menu.style.visibility = "visible";
}

function resetButton(button) 
{
	removeClassName(button, "menuButtonActive");
	if (button.menu != null) 
	{
		closeSubMenu(button.menu);
		button.menu.style.visibility = "hidden";
	}
}

function menuMouseover(event) 
{
	var menu;
	if (browser.isIE) menu = getContainerWith(window.event.srcElement, "DIV", "menu");
	else menu = event.currentTarget;

	if (menu.activeItem != null) closeSubMenu(menu);
}

function menuItemMouseover(event, menuId) 
{
	var item, menu, x, y;
	if (browser.isIE) item = getContainerWith(window.event.srcElement, "A", "menuItem");

	else item = event.currentTarget;
	
	menu = getContainerWith(item, "DIV", "menu");
	
	if (menu.activeItem != null) closeSubMenu(menu);
	
	menu.activeItem = item;
	item.className += " menuItemHighlight";
	
	if (item.subMenu == null) 
	{
		item.subMenu = document.getElementById(menuId);
		menuInit(item.subMenu);
	}
	x = getPageOffsetLeft(item) + item.offsetWidth;
	y = getPageOffsetTop(item);
	var maxX, maxY;
	if (browser.isNS) {
	maxX = window.scrollX + window.innerWidth;
	maxY = window.scrollY + window.innerHeight;
	}
	if (browser.isIE && browser.version < 6) {
	maxX = document.body.scrollLeft + document.body.clientWidth;
	maxY = document.body.scrollTop + document.body.clientHeight;
	}
	if (browser.isIE && browser.version >= 6) {
	maxX = document.documentElement.scrollLeft + document.documentElement.clientWidth;
	maxY = document.documentElement.scrollTop + document.documentElement.clientHeight;
	}
	maxX -= item.subMenu.offsetWidth;
	maxY -= item.subMenu.offsetHeight;
	if (x > maxX)
	x = Math.max(0, x - item.offsetWidth -5
	+ (menu.offsetWidth));
	y = Math.max(0, Math.min( y + 3));
	item.subMenu.style.left = x + "px";
	item.subMenu.style.top = y + "px";
	item.subMenu.style.visibility = "visible";
	if (browser.isIE)
	window.event.cancelBubble = true;
	else
	event.stopPropagation();
}

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 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";
	}
}

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 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 removeClassName(el, name) 
{
	var i, curList, newList;
	if (el.className == null)
	return;
	newList = new Array();
	curList = el.className.split(" ");
	for (i = 0; i < curList.length; i++)
	if (curList[i] != name)
	newList.push(curList[i]);
	el.className = newList.join(" ");
}

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;
}