//<![CDATA[
//	drop_down.js

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;
		}

	s = "Firefox/";
	if ((i = ua.indexOf(s)) >= 0) {
		this.isMF = 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();

var activeButton = null;
//	var activeMenus = new Array();
var t;
var obj;
var delay = 500;



//	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*


function buttonClick(event, menuId) {
//var button;

	// Get the target button element.
	if ( window.event )
		var button = window.event.srcElement;
	else
		var button = event.currentTarget;
	// 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 != null ) {
		if (button.menu.isInitialized == null) 	
			menuInit(button.menu);
		else
		if (activeButton != null) {
			resetButton(activeButton);
			}
		}
	// [MODIFIED] Added for activate/deactivate on mouseover.
	// Set mouseout event handler for the button, if not already done.
	if (button.onmouseout == null)
		button.onmouseout = buttonOrMenuMouseout;
	// Exit if this button is the currently active one.
	if (button == activeButton) {
		return false;
		}
	// [END MODIFIED]:

	// Reset the currently active button, if any.
	if (activeButton != null) {
		resetButton(activeButton);
		}
	// Activate this button, unless it was the currently active one.
	if (button != activeButton) {	//	null ??
		depressButton(button);
		activeButton = button;
		}
	else
		{
		activeButton = null;
		}
	return false;
	}


function buttonMouseover(event, menuId) {
var button;

// Activates this button's menu if no other is currently active.
	if ( activeButton == null && document.getElementById(menuId) ) {
		buttonClick(event, menuId);
		return;
		}
	//	Close aktive menu !
	if ( activeButton != null )
		if ( activeButton.menu != null && !document.getElementById(menuId) ) {
	 		buttonClick(event, null);
	 		return;
			}
// Find the target button element.
	if ( window.event )
		button = window.event.srcElement;
	else
		button = event.currentTarget;
// If any other button menu is active, make this one active instead.
	if ( activeButton != button )
		if ( document.getElementById(menuId) ) 
			buttonClick(event, menuId);
	}


function depressButton(button) {
var x, y;
// Update the button's style class to make it look like it's depressed.
	//	If there is an empty memu
	if ( button.menu == null )	return;
	button.className += " menuButtonActive";
// [MODIFIED] Added for activate/deactivate on mouseover.
// Set mouseout event handler for the button, if not already done.
	if (button.onmouseout == null)
		button.onmouseout = buttonOrMenuMouseout;
	if (button.menu.onmouseout == null)
		button.menu.onmouseout = buttonOrMenuMouseout;
// [END MODIFIED]

// Position the associated drop down menu under the button and show it.
	x = getPageOffsetLeft(button);
//	x = getPageOffsetLeft(button) - (button.menu.offsetWidth/4);
	y = getPageOffsetTop(button) + button.offsetHeight;
	// For IE, adjust position.
	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";
	// 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 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";
//		if ( obj != null ) 	hideStyleObject(obj);	//	Now!
//		obj = $button.menu.id;
//		if ( obj != null ) 	t=setTimeout("hideStyleObject(obj)",delay);	//	Delay 0.2s
		}
	}

function menuMouseover(event) {
var menu;
	// Find the target menu element.
	if ( window.event )
		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 ( window.event )
		item = getContainerWith(window.event.srcElement, "IMG", "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 != null ) {
			if (item.subMenu.isInitialized == null) 
				menuInit(item.subMenu);
			}
		}

// [MODIFIED] Added for activate/deactivate on mouseover.
// Set mouseout event handler for the sub menu, if not already done.
	if (item.subMenu != null)
		if (item.subMenu.onmouseout == null)
			item.subMenu.onmouseout = buttonOrMenuMouseout;
// [END MODIFIED]

	// Get position for submenu based on the menu item.
	if (item.subMenu != null  && item.subMenu.getAttribute('level') > 2 ) {
		x = getPageOffsetLeft(item) + item.offsetWidth;
		y = getPageOffsetTop(item);
		}
	else
		{	//	 + button.offsetHeight;
		x = getPageOffsetLeft(item);
		y = getPageOffsetTop(item) + item.offsetHeight;
		}

	// Adjust position to fit in view.
	var maxX=0;
	var maxY=0;
	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;
		}

//	document.getElementById('omenu5').innerHTML = " maxX '"+maxX+"' ";		
//	document.getElementById('omenu6').innerHTML = " maxY '"+maxY+"' ";		
	
	if ( item.subMenu != null && item.subMenu.getAttribute('level') > 1 ) {
		maxX -= item.subMenu.offsetWidth;
		maxY -= item.subMenu.offsetHeight;
		}
	else
		{
		maxX -= item.offsetWidth;
		maxY -= item.offsetHeight;
		}
	
//document.getElementById('omenu0').innerHTML = " item.offsetWidth '"+item.offsetWidth+"' ";
//document.getElementById('omenu1').innerHTML = " x '"+x+"' ";
//document.getElementById('omenu2').innerHTML = " y '"+y+"' ";

	//	This don't work ??
//	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));


//document.getElementById('omenu3').innerHTML = " item.subMenu.offsetWidth '"+item.subMenu.offsetWidth+"' ";
//document.getElementById('omenu4').innerHTML = " item.subMenu.offsetHeight '"+item.subMenu.offsetHeight+"' ";
//document.getElementById('omenu5').innerHTML = " menu.offsetWidth '"+menu.offsetWidth+"' ";
//document.getElementById('omenu6').innerHTML = " item.offsetWidth '"+item.offsetWidth+"' ";

	if ( item.subMenu != null ) {
		// Position and show the sub menu.
		item.subMenu.style.left = x + "px";
		item.subMenu.style.top = y + "px";
		item.subMenu.style.visibility = "visible";
		// For IE; size, position and display 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();

// debug display
//	if ( menu != null )
//		document.getElementById('menuItemMouseover').innerHTML = " item.name '"+item.name+"' ";
//	else
//		document.getElementById('menuItemMouseover').innerHTML = ' - ';		
	}

	
function closeSubMenu(menu) {

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

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

		menu.activeItem.subMenu.style.visibility = "hidden";
//		if ( obj != null ) 	hideStyleObject(obj);
//		obj = menu.activeItem.subMenu.id;
//		if ( obj != null )	t=setTimeout("hideStyleObject(obj)",delay);	//	Delay 0.2.s

	// 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;
	}

// [MODIFIED] Added for activate/deactivate on mouseover. Handler for mouseout event on buttons and menus.
function buttonOrMenuMouseout(event) {
var el;
	// If there is no active button, exit.
	if (activeButton == null)	return;
	// Find the element the mouse is moving to.
	if ( window.event )
		el = window.event.toElement;
	else 
	if (event.relatedTarget != null)
		el = (event.relatedTarget.tagName ? event.relatedTarget : event.relatedTarget.parentNode);
	// If the element is not part of a menu, reset the active button.
	if (getContainerWith(el, "DIV", "menu") == null) {
		resetButton(activeButton);
		activeButton = null;
		}
	}
// [END MODIFIED]


function menuInit( menu ) {
var itemList, spanList, textEl, arrowEl, itemWidth, w, dw, 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("img");
	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:false;";
		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;
	}


//	Delay for closing menues, not in use
function hideStyleObject( $id ) {
var	$this = document.getElementById($id);
	if ( $this != null ) {
		$this.style.visibility='hidden';
	// For IE, hide menu's IFRAME as well.
		if ( $this.iframeEl != null) 
			$this.iframeEl.style.display = "none";
		}
	clearTimeout(t);
	obj = null;	//	Done
	}


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;
	}


//]]>