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

// T.Eekman: made some modifications to show/hide with a delay
// this script also runs a function to tweak the dropdown layout
var okToClose = true;
var okToOpen = true;

window.onload= dropdownLayout;

//----------------------------------------------------------------------------
// Code to determine the browser and version.
//----------------------------------------------------------------------------

function Browser() {

	var ua, s, i;

	this.isIE    = false;  // Internet Explorer
	this.isOP    = false;  // Opera
	this.isNS    = false;  // Netscape
	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;
	}

	// Treat any other "Gecko" browser as Netscape 6.1.

	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();

//----------------------------------------------------------------------------
// Code for handling the menu bar and active button.
//----------------------------------------------------------------------------

var activeButton = null;

// Capture mouse clicks on the page so any active button can be
// deactivated.

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

// determine if we clicked somewhere in the calendar or not
function isCE (e, i) { 
	if (i > 5) {
		return false;
	}
		
	if (e.id) {
		if (e.id.indexOf('epoch_') == 0) {
			return true;
		}
	}
	
	if (e.parentNode) 
		return isCE(e.parentNode, i+1);
	else
		return false;
		
}

function pageMousedown(event) {

	var el;
	
	
	if (browser.isIE)
    	el = window.event.srcElement;
	else
		el = (event.target.tagName ? event.target : event.target.parentNode);
	
	
	// hide calendar popup if not clicked on calendar 	
	if (!isCE(el, 0)) {
		try {
			dp_cal1.hide(); 
			dp_cal2.hide(); 
		} catch(e) {
		}
	}
	
	
	// If there is no active button, exit.
	if (activeButton == null)
		return;
	
	// If the active button was clicked on, exit.
	if (el == activeButton)
    	return;

	// If the element is not part of a menu, reset and clear the active
	// button.

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

function buttonClick(event, menuId) {
	var button;

	// Get the target button element.
	if (browser.isIE)
		button = window.event.srcElement;
	else
		button = event.currentTarget;

	// Blur focus from the link to remove that annoying outline.
	button.blur();

	// Associate the named menu to this button if not already done.
	// Additionally, initialize menu display.

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

  // Reset the currently active button, if any.
	if ( activeButton != button && activeButton != null)
    	resetButton(activeButton);

	// Activate this button, unless it was the currently active one.
	if (button != activeButton) {
		//console.log('1' + button);
		dp = new depressButtonO();
		dp.button = button;
		okToOpen = true;
		setTimeout('dp.depress()', 100);
		//depressButton(button);
	    activeButton = button;
	}
	else {
    	activeButton = null;
		
		dp = new depressButtonO();
		dp.button = button;
		okToOpen = true;
		setTimeout('dp.depress()', 250);
		//depressButton(button);
		
	}

	return false;
}


function buttonMouseover(event, menuId) {
	
	var button;
	
	//console.log('buttonMouseover' + event + ' ' + menuId);
	okToClose = false;
	//buttonClick(event, menuId);
	
	// Find the target button element.
	if (browser.isIE)
		button = window.event.srcElement;
	else
		button = event.currentTarget;
	
	//console.log('button=' + button);
	
	//activeButton = button;
	
	
	// If any other button menu is active, make this one active instead.
	//if (activeButton != null && activeButton != button)
	
    	buttonClick(event, menuId);
		
		var menus = getElementsByStyleClass('menu');
		for (var i = 0; i < menus.length; i++) {
			//alert(menuId);
			if (menus[i].id != menuId) {
				// Hide the sub menu.
				//console.log('hiding menu' + i);
				menus[i].style.visibility = "hidden";;
			
				// For IE, hide the sub menu's IFRAME as well.
				if (menus[i].iframeEl != null) {
					menus[i].iframeEl.style.display = "none";
					menus[i] = null;
				}
			}
		}
}

function depressButton(button) {

	var x, y;

	// Update the button's style class to make it look like it's
	// depressed.

	button.className += " menuButtonActive";

	// Position the associated drop down menu under the button and
	// show it.

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

	// For IE, adjust position.
	/*
  	if (browser.isIE) {
    	x += button.offsetParent.clientLeft;
    	y += button.offsetParent.clientTop;
  	}
	*/

	if (button.menu) { // we also call it on menubutton without submenu
		button.menu.style.left = x + "px";
		button.menu.style.top  = y + "px";
		button.menu.style.visibility = "visible";
	
		// For IE; size, position and show the menu's IFRAME as well.
	
		if (button.menu.iframeEl != null) {
			button.menu.iframeEl.style.left = button.menu.style.left;
			button.menu.iframeEl.style.top  = button.menu.style.top;
			button.menu.iframeEl.style.width  = button.menu.offsetWidth + "px";
			button.menu.iframeEl.style.height = button.menu.offsetHeight + "px";
			button.menu.iframeEl.style.display = "";
		}
	}

}

function depressButtonO() {
	this.button = null;
	
	this.depress = function() {
		var x, y;
	
		// Update the button's style class to make it look like it's
		// depressed.
	
		this.button.className += " menuButtonActive";
	
		// Position the associated drop down menu under the button and
		// show it.
	
		x = getPageOffsetLeft(this.button);
		y = getPageOffsetTop(this.button) + this.button.offsetHeight;
	
		//x = x - 5;
		y = y - 10;  /* manual adjustment. moves the dropdown menu up - little over main menu bar */
	
		// For IE, adjust position.
		/*
		if (browser.isIE) {
			x += button.offsetParent.clientLeft;
			y += button.offsetParent.clientTop;
		}*/
		
		if (okToOpen) {
			if (this.button.menu) { // we also call it on menubutton without submenu
				this.button.menu.style.left = x + "px";
				this.button.menu.style.top  = y + "px";
				this.button.menu.style.visibility = "visible";
			
				// For IE; size, position and show the menu's IFRAME as well.
			
				if (this.button.menu.iframeEl != null) {
					this.button.menu.iframeEl.style.left = this.button.menu.style.left;
					this.button.menu.iframeEl.style.top  = this.button.menu.style.top;
					this.button.menu.iframeEl.style.width  = this.button.menu.offsetWidth + "px";
					this.button.menu.iframeEl.style.height = this.button.menu.offsetHeight + "px";
					this.button.menu.iframeEl.style.display = "";
				}
			}
		}
	}
}


function resetButton(button) {

	// Restore the button's style class.
	removeClassName(button, "menuButtonActive");

	// Hide the button's menu, first closing any sub menus.
	if (button.menu != null) {
		closeSubMenu(button.menu);
		button.menu.style.visibility = "hidden";

    // For IE, hide menu's IFRAME as well.
    if (button.menu.iframeEl != null)
		button.menu.iframeEl.style.display = "none";
	}
}

//----------------------------------------------------------------------------
// Code to handle the menus and sub menus.
//----------------------------------------------------------------------------

function menuMouseover(event) {

	var menu;
	
	//console.log('menuMouseover');
	okToClose = false;
	
	// Find the target menu element.
	if (browser.isIE)
    	menu = getContainerWith(window.event.srcElement, "DIV", "menu");
	else
    	menu = event.currentTarget;

	// Close any active sub menu.
	if (menu.activeItem != null)
    	closeSubMenu(menu);
}

function menuItemMouseover(event, menuId) {

	var item, menu, x, y;

	// Find the target item element and its parent menu element.

	if (browser.isIE)
    	item = getContainerWith(window.event.srcElement, "A", "menuItem");
	else
    	item = event.currentTarget;
	menu = getContainerWith(item, "DIV", "menu");

	// Close any active sub menu and mark this one as active.

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

	// Highlight the item element.
	item.className += " menuItemHighlight";

	// Initialize the sub menu, if not already done.
	if (item.subMenu == null) {
		item.subMenu = document.getElementById(menuId);
	if (item.subMenu.isInitialized == null)
		menuInit(item.subMenu);
	}

	// Get position for submenu based on the menu item.

	x = getPageOffsetLeft(item) + item.offsetWidth;
	y = getPageOffsetTop(item);

	// Adjust position to fit in view.

	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));

	// Position and show it.
	item.subMenu.style.left       = x + "px";
	item.subMenu.style.top        = y + "px";
	item.subMenu.style.visibility = "visible";

	// For IE; size, position and show the menu's IFRAME as well.

	if (item.subMenu.iframeEl != null) {
		item.subMenu.iframeEl.style.left    = item.subMenu.style.left;
		item.subMenu.iframeEl.style.top     = item.subMenu.style.top;
		item.subMenu.iframeEl.style.width   = item.subMenu.offsetWidth + "px";
		item.subMenu.iframeEl.style.height  = item.subMenu.offsetHeight + "px";
		item.subMenu.iframeEl.style.display = "";
	}

	// Stop the event from bubbling.

	if (browser.isIE)
    	window.event.cancelBubble = true;
	else
    	event.stopPropagation();
}

function closeSubMenu(menu) {

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

	// Recursively close any sub menus.
	if (menu.activeItem.subMenu != null) {
    	closeSubMenu(menu.activeItem.subMenu);


	// Hide the sub menu.
    menu.activeItem.subMenu.style.visibility = "hidden";

    // For IE, hide the sub menu's IFRAME as well.
    if (menu.activeItem.subMenu.iframeEl != null)
    	menu.activeItem.subMenu.iframeEl.style.display = "none";
    	menu.activeItem.subMenu = null;
	}

	// Deactivate the active menu item.
	removeClassName(menu.activeItem, "menuItemHighlight");
	menu.activeItem = null;
}

//----------------------------------------------------------------------------
// Code to initialize menus.
//----------------------------------------------------------------------------

function menuInit(menu) {

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

	// For IE, replace arrow characters.
	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";
      		}
  	}

  // Find the width of a menu item.
	itemList = menu.getElementsByTagName("A");
	if (itemList.length > 0)
    	itemWidth = itemList[0].offsetWidth;
	else
    	return;

  // For items with arrows, add padding to item text to make the
  // arrows flush right.
	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";


		// For Opera, remove the negative right margin to fix a display bug.
		if (browser.isOP)
        	arrowEl.style.marginRight = "0px";
		}
	}

	// Fix IE hover problem by setting an explicit width on first item of
	// the menu.
	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";
	}

	// Fix the IE display problem (SELECT elements and other windowed controls
	// overlaying the menu) by adding an IFRAME under the menu.
	if (browser.isIE) {
    	var iframeEl = document.createElement("IFRAME");
		iframeEl.frameBorder = 0;
    	iframeEl.src = "javascript:;";
    	iframeEl.style.display = "none";
    	iframeEl.style.position = "absolute";
    	iframeEl.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)";
    	menu.iframeEl = menu.parentNode.insertBefore(iframeEl, menu);
  	}

  	// Mark menu as initialized.
  	menu.isInitialized = true;
  	
}



//----------------------------------------------------------------------------
// General utility functions.
//----------------------------------------------------------------------------

function getContainerWith(node, tagName, className) {

	// Starting with the given node, find the nearest containing element
	// with the specified tag name and style class.
	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;

	// Return true if the given element currently has the given class
	// name.

	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;

	// Remove the given class name from the element's className property.
	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;

	// Return the x coordinate of an element relative to the page.
	x = el.offsetLeft;
	if (el.offsetParent != null)
		x += getPageOffsetLeft(el.offsetParent);

	return x;
	
}


function getPageOffsetTop(el) {

	var y;

	// Return the x coordinate of an element relative to the page.
	y = el.offsetTop;
	if (el.offsetParent != null)
		y += getPageOffsetTop(el.offsetParent);

	return y;
	
}


function hideMenus() {
	for (i = 0; i < spanList.length; i++) {
	
		// Hide the button's menu, first closing any sub menus.
		if (button.menu != null) {
			closeSubMenu(button.menu);
			button.menu.style.visibility = "hidden";
	
	    // For IE, hide menu's IFRAME as well.
	    if (button.menu.iframeEl != null)
			button.menu.iframeEl.style.display = "none";
		}
		
	}
}

function getElementsByStyleClass (className) {
	var all = document.all ? document.all : document.getElementsByTagName('*');
	var elements = new Array();
	for (var e = 0; e < all.length; e++)
		if (all[e].className == className)
			elements[elements.length] = all[e];
	return elements;
}

function hideAllMenus() {
	if (okToClose) {
		var menus = getElementsByStyleClass('menu');
		for (var i = 0; i < menus.length; i++) {
			// Hide the sub menu.
			menus[i].style.visibility = "hidden";;
		
			// For IE, hide the sub menu's IFRAME as well.
			if (menus[i].iframeEl != null) {
				menus[i].iframeEl.style.display = "none";
				menus[i] = null;
			}
		}
	}
}

function hideDelayed() {
	//console.log("hidedelay");
	okToClose = true;
	okToOpen = false;
	setTimeout("hideAllMenus()", 1200);
}



/**
 * layout fix only required for IE6
 */
function dropdownLayout() {
	var dropDownMenus = document.getElementsByClassName('menu'); 
	for(var i=0; i<dropDownMenus.length; i++) {		
		var bottomBar = document.getElementsByClassName('dropdown-bottom', dropDownMenus[i]); 
		for(var j=0; j<bottomBar.length; j++) {  // should be only one
			bottomBar[j].style.width =  dropDownMenus[i].offsetWidth + 'px';
		}
	}
}