/* Menu Script */

//*****************************************************************************
// Do not remove this notice.
//
// Copyright 2000-2004 by Mike Hall.
// See http://www.brainjar.com for terms of use.
//*****************************************************************************

function Browser()
{
	var ua, s, i;
	this.isIE = false;
	this.isOP = false;
	this.isNS = false;
	this.version = null;
	ua = navigator.userAgent;
	
	s = "Opera";
	if ((i = ua.indexOf(s)) >= 0)
	{
		this.isOP = 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;
	}
	
	s = "Gecko";
	if ((i = ua.indexOf(s)) >= 0)
	{
		this.isNS = true;
		this.version = 6.1;
		return;
	}
	
	s = "MSIE";
	if ((i = ua.indexOf(s)))
	{
		this.isIE = true;
		this.version = parseFloat(ua.substr(i + s.length));
		return;
	}
}
var browser = new Browser();

var activeButton = null;

function buttonClick(event, menuId)
{
	var button;
	if (browser.isIE)
		button = window.event.srcElement;
	else
		button = event.currentTarget;
	button.blur();
	if (button.menu == null && menuId != null)
	{
		button.menu = document.getElementById(menuId);
		if (button.menu.isInitialized == null)
			menuInit(button.menu);
	}
	if (button.onmouseout == null)
		button.onmouseout = buttonOrMenuMouseout;
	if (button == activeButton)
		return false;
	if (activeButton != null)
		resetButton(activeButton);
	if (button != activeButton)
	{
		depressButton(button);
		activeButton = button;
	}
	else
		activeButton = null;
	return false;
}
function buttonMouseover(event, menuId)
{
	var button;
	if (activeButton == null)
	{
		buttonClick(event, menuId);
		return;
	}
	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";
	if (button.onmouseout == null)
		button.onmouseout = buttonOrMenuMouseout;
	if (button.menu != null)
	{
		if (button.menu.onmouseout == null)
			button.menu.onmouseout = buttonOrMenuMouseout;
		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);
		if (item.subMenu.isInitialized == null)
			menuInit(item.subMenu);
	}
	if (item.subMenu.onmouseout == null)
		item.subMenu.onmouseout = buttonOrMenuMouseout;
	x = getPageOffsetLeft(item) + item.offsetWidth;
	y = getPageOffsetTop(item);
	var maxX, maxY;
	if (browser.isIE)
	{
		maxX = Math.max(document.documentElement.scrollLeft, document.body.scrollLeft) +
		(document.documentElement.clientWidth != 0 ? document.documentElement.clientWidth : document.body.clientWidth);
		maxY = Math.max(document.documentElement.scrollTop, document.body.scrollTop) +
		(document.documentElement.clientHeight != 0 ? document.documentElement.clientHeight : document.body.clientHeight);
	}
	if (browser.isOP)
	{
		maxX = document.documentElement.scrollLeft + window.innerWidth;
		maxY = document.documentElement.scrollTop + window.innerHeight;
	}
	if (browser.isNS)
	{
		maxX = window.scrollX + window.innerWidth;
		maxY = window.scrollY + window.innerHeight;
	}
	maxX -= item.subMenu.offsetWidth;
	maxY -= item.subMenu.offsetHeight;
	if (x > maxX)
		x = Math.max(0, x - item.offsetWidth - item.subMenu.offsetWidth	+ (menu.offsetWidth - item.offsetWidth));
	y = Math.max(0, Math.min(y, maxY));
	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 buttonOrMenuMouseout(event)
{
	var el;
	if (activeButton == null)
		return;
	if (browser.isIE)
		el = window.event.toElement;
	else if (event.relatedTarget != null)
		el = (event.relatedTarget.tagName ? event.relatedTarget : event.relatedTarget.parentNode);
	if (getContainerWith(el, "DIV", "menu") == null)
	{
		resetButton(activeButton);
		activeButton = 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.isOP)
				arrowEl.style.marginRight = "0px";
		}
	}
	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 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;
}