/* =================================================================================================
 * TransMenu
 * March, 2003
 *
 * Customizable multi-level animated DHTML menus with transparency.
 *
 * Copyright 2003-2004, Aaron Boodman (www.youngpup.net)
 * =================================================================================================
 * "Can I use this?"
 *
 * Use of this library is governed by the Creative Commons Attribution 2.0 License. You can check it
 * out at: http://creativecommons.org/licenses/by/2.0/
 *
 * Basically: You may copy, distribute, and eat this code as you wish. But you must give me credit
 * for writing it. You may not misrepresent yourself as the author of this code.
 * =================================================================================================
 * "It's kinda hard to read, though"
 *
 * The uncompressed, commented version of this script can be found at:
 * http://youngpup.net/projects/transMenus
 * =================================================================================================
 * updates:
 * 04.19.04 fixed cascade problem with menus nested greater than two levels.
 * 12.23.03 added hideCurrent for menu actuators with no menus. renamed to TransMenu.
 * 04.18.03	fixed render bug in IE 5.0 Mac by removing that browser from compatibility table ;)
 *			also made gecko check a little more strict by specifying build no.
 * ============================================================================================== */



//==================================================================================================
// Configuration properties
//==================================================================================================
TransMenu.spacerGif = "images/x.gif";                     // path to a transparent spacer gif
TransMenu.dingbatOn = "images/submenu-on.gif";            // path to the active sub menu dingbat
TransMenu.dingbatOff = "images/submenu-off.gif";          // path to the inactive sub menu dingbat
TransMenu.dingbatSize = 14;                            // size of the dingbat (square shape assumed)
TransMenu.menuPadding = 5;                             // padding between menu border and items grid
TransMenu.itemPadding = 3;                             // additional padding around each item
TransMenu.shadowSize = 2;                              // size of shadow under menu
TransMenu.shadowOffset = 3;                            // distance shadow should be offset from leading edge
TransMenu.shadowColor = "#888";                        // color of shadow (transparency is set in CSS)
TransMenu.shadowPng = "images/grey-40.png";               // a PNG graphic to serve as the shadow for mac IE5
TransMenu.backgroundColor = "white";                   // color of the background (transparency set in CSS)
TransMenu.backgroundPng = "images/white-90.png";          // a PNG graphic to server as the background for mac IE5
TransMenu.hideDelay = 1000;                            // number of milliseconds to wait before hiding a menu
TransMenu.slideTime = 400;                             // number of milliseconds it takes to open and close a menu


//==================================================================================================
// Internal use properties
//==================================================================================================
TransMenu.reference = {topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};
TransMenu.direction = {down:1,right:2,up:3,left:4};
TransMenu.registry = [];
TransMenu._maxZ = 100;



//==================================================================================================
// Static methods
//==================================================================================================
// supporting win ie5+, mac ie5.1+ and gecko >= mozilla 1.0
TransMenu.isSupported = function() {
	var ua = navigator.userAgent.toLowerCase();
	var pf = navigator.platform.toLowerCase();
	var an = navigator.appName;
	var r = true;
	
	if (ua.indexOf("gecko") > -1 && navigator.productSub >= 20020605)
		r = true; // gecko >= moz 1.0
	else if (an == "Microsoft Internet Explorer"  ) {
		if (document.getElementById) { // ie5.1+ mac,win
			if (pf.indexOf("mac") == 0) {
				r = /msie (\d(.\d*)?)/.test(ua) && Number(RegExp.$1) >= 5.1;
			}
			else
				r = true;
		}
	}
	
	return r;
};

// call this in onload once menus have been created
TransMenu.initialize = function() {
	for (var i = 0, menu = null; menu = this.registry[i]; i++) {
		menu.initialize();
	}
};

// call this in document body to write out menu html
TransMenu.renderAll = function() {
	var aMenuHtml = [];
	for (var i = 0, menu = null; menu = this.registry[i]; i++) {
		aMenuHtml[i] = menu.toString();
	}
	//alert(aMenuHtml.join("-----------------------------------------"));
	document.write(aMenuHtml.join(""));
};

//==================================================================================================
// TransMenu constructor (only called internally)
//==================================================================================================
// oActuator            : The thing that causes the menu to be shown when it is mousedover. Either a
//                        reference to an HTML element, or a TransMenuItem from an existing menu.
// iDirection           : The direction to slide out. One of TransMenu.direction.
// iLeft                : Left pixel offset of menu from actuator
// iTop                 : Top pixel offset of menu from actuator
// iReferencePoint      : Corner of actuator to measure from. One of TransMenu.referencePoint.
// parentMenuSet        : Menuset this menu will be added to.
//==================================================================================================
function TransMenu(oActuator, iDirection, iLeft, iTop, iReferencePoint, parentMenuSet) {
	// public methods
	this.addItem = addItem;
	this.addMenu = addMenu;
	this.toString = toString;
	this.initialize = initialize;
	this.isOpen = false;
	this.show = show;
	this.hide = hide;
	this.items = [];
	//modid=TransMenu.modid;
	// events
	this.onactivate = new Function();       // when the menu starts to slide open
	this.ondeactivate = new Function();     // when the menu finishes sliding closed
	this.onmouseover = new Function();      // when the menu has been moused over
	this.onqueue = new Function();          // hack .. when the menu sets a timer to be closed a little while in the future
	this.ondequeue = new Function();
	
	// initialization
	this.index = TransMenu.registry.length;
	TransMenu.registry[this.index] = this;
	
	var id = "TransMenu" + this.index ;
	var contentHeight = null;
	var contentWidth = null;
	var childMenuSet = null;
	var animating = false;
	var childMenus = [];
	var slideAccel = -1;
	var elmCache = null;
	var ready = false;
	var _this = this;
	var a = null;
	
	var is = null;
	
	var pos = (iDirection == TransMenu.direction.down || iDirection == TransMenu.direction.up)? "top" : "left";
	var dim = null;

	// private and public method implimentations
	function addItem(sText, sUrl, browserNav, active) {
		var item = new TransMenuItem(sText, sUrl, this, browserNav, active,(id+"-"+this.items.length));
		item._index = this.items.length;
		this.items[item._index] = item;
	}

	function addMenu(oMenuItem, offx, offy) {
		if (!oMenuItem.parentMenu == this) throw new Error("Cannot add a menu here");
		
		var iDirec = TransMenu.direction.right;
		var iRef = TransMenu.reference.topRight;
		if (iDirection == TransMenu.direction.left) {
			iDirec = TransMenu.direction.left;
			iRef = TransMenu.reference.topLeft;
		}
		if (childMenuSet == null)
			childMenuSet = new TransMenuSet(iDirec, offx, offy, iRef);
		
		var m = childMenuSet.addMenu(oMenuItem);
		
		childMenus[oMenuItem._index] = m;
		m.onmouseover = child_mouseover;
		m.ondeactivate = child_deactivate;
		m.onqueue = child_queue;
		m.ondequeue = child_dequeue;
		
		return m;
	}

	function initialize() {
		initCache();
		initEvents();
		initSize();
		ready = true;
	}

	function show() {
		//dbg_dump("show");
		if (ready) {
			//dbg_msg("ID: " + id);
			_this.isOpen = true;
			animating = true;
			setContainerPos();
			elmCache["clip"].style.visibility = "visible";
			elmCache["clip"].style.zIndex = TransMenu._maxZ++;
			//dbg_dump("maxZ: " + TransMenu._maxZ);
			slideStart();
			// ADD LINE BELOW
			if(TransMenu.selecthack){
				WCH.Apply(id);
			}
			_this.onactivate();
		}
	}

	function hide() {
		if (ready) {
			_this.isOpen = false;
			animating = true;
			
			for (var i = 0, item = null; item = elmCache.item[i]; i++)
				dehighlight(item);
			
			if (childMenuSet) childMenuSet.hide();
			
			slideStart();
			//ADD LINE BELOW
			if(TransMenu.selecthack){
				WCH.Discard(id);
			}
		_this.ondeactivate();
		}
	}

	function setContainerPos() {
		var sub = oActuator.constructor == TransMenuItem;
		var act = sub ? oActuator.parentMenu.elmCache["item"][oActuator._index] : oActuator;
		var el = act;
		
		var x = 0;
		var y = 0;
		
		var ua = navigator.userAgent.toLowerCase();
		if ( ua.indexOf("opera") >= 0 ) {
			var minX = 0;
			var maxX = (window.innerWidth ? window.innerWidth + document.body.scrollLeft : document.body.clientWidth + document.body.scrollLeft) - parseInt(elmCache["clip"].style.width);
			var minY = 0;
			var maxY = (window.innerHeight ? window.innerHeight + document.body.scrollTop : document.body.clientHeight + document.body.scrollTop) - parseInt(elmCache["clip"].style.height);
		}
		else {
			var minX = 0;
			var maxX = (window.innerWidth ? window.innerWidth + window.scrollX : document.body.clientWidth + document.body.scrollLeft) - parseInt(elmCache["clip"].style.width);
			var minY = 0;
			var maxY = (window.innerHeight ? window.innerHeight + window.scrollY : document.body.clientHeight + document.body.scrollTop) - parseInt(elmCache["clip"].style.height);
		}
		
		// add up all offsets... subtract any scroll offset
		while (sub ? el.parentNode.className.indexOf("transMenu") == -1 : el.offsetParent) {
			x += el.offsetLeft;
			y += el.offsetTop;
			
			if (el.scrollLeft) x -= el.scrollLeft;
			if (el.scrollTop) y -= el.scrollTop;
			
			//Fix for opera
			var ua = navigator.userAgent.toLowerCase();
			if ( ua.indexOf("opera") >= 0 && el.tagName == 'TABLE' && el.offsetTop == 0) {
				y += act.childNodes[0].offsetTop;
				if (act.childNodes[0].scrollTop)
					y -= act.childNodes[0].scrollTop;
			}
			el = el.offsetParent;
		}
		
		if (oActuator.constructor == TransMenuItem) {
			x += parseInt(el.parentNode.style.left);
			y += parseInt(el.parentNode.style.top);
		}
		
		switch (iReferencePoint) {
			case TransMenu.reference.topLeft:
				break;
			case TransMenu.reference.topRight:
				x += act.offsetWidth;
				break;
			case TransMenu.reference.bottomLeft:
				y += act.offsetHeight;
				break;
			case TransMenu.reference.bottomRight:
				x += act.offsetWidth;
				y += act.offsetHeight;
				break;
		}
		//  Begin fix for Safari 1.2 Submenu Positions
		
		if (act.tagName == "TR" && act.childNodes[0] && act.childNodes[1] && act.offsetWidth == 0 && act.offsetHeight == 0) {
		
			switch (iReferencePoint) {
				case TransMenu.reference.topLeft:
					break;
				
				case TransMenu.reference.topRight:
					x += act.childNodes[1].offsetLeft + act.childNodes[1].offsetWidth;
					y += act.childNodes[0].offsetTop;
					break;
				
				case TransMenu.reference.bottomLeft:
					y += act.childNodes[0].offsetTop + act.childNodes[0].offsetHeight;
					break;
					
				case TransMenu.reference.bottomRight:
					x += act.childNodes[1].offsetLeft + act.childNodes[1].offsetWidth;
					y += act.childNodes[0].offsetTop + act.childNodes[0].offsetHeight;
					break;
			}
		}
		
		//  End fix for Safaria 1.2 Submenu Positions
		x += iLeft;
		y += iTop;
		/*
		// thuyqt
		x = Math.max(Math.min(x, maxX), minX);
		y = Math.max(Math.min(y, maxY), minY);
		*/
		var ow = elmCache["items"].offsetWidth;
		var oh = elmCache["items"].offsetHeight;
		contentHeight = oh + TransMenu.shadowSize;
		contentWidth = ow + TransMenu.shadowSize;
		
		if (iDirection == TransMenu.direction.up ) {
			y -= contentHeight;
		}
		if (iDirection == TransMenu.direction.left ) {
			x -= contentWidth;
		}
		
		if( sub ) {
			if( oActuator.parentMenu.is ) {
				//alert(act.offsetWidth);
				x -= parseInt(act.offsetWidth);
				y += parseInt(act.offsetHeight);
			}
		}
		
		
		//dbg_dump("x: "+x +", y: "+ y +", minX: "+ minX +", maxX: "+ maxX +", minY: "+ minY +", maxY: "+ maxY );
		
		elmCache["clip"].style.left = x + "px";
		elmCache["clip"].style.top = y + "px";
	}

	function slideStart() {
		var x0 = parseInt(elmCache["content"].style[pos]);
		var x1 = _this.isOpen ? 0 : -dim;
		
		if (a != null)
			a.stop();
		a = new Accelimation(x0, x1, TransMenu.slideTime, slideAccel);
		
		a.onframe = slideFrame;
		a.onend = slideEnd;
		
		a.start();
	}

	function slideFrame(x) {
		elmCache["content"].style[pos] = x + "px";
	}

	function slideEnd() {
		if (!_this.isOpen)
			elmCache["clip"].style.visibility = "hidden";
			
		animating = false;
	}

	function initSize() {
		// everything is based off the size of the items table...
		var ow = elmCache["items"].offsetWidth;
		var oh = elmCache["items"].offsetHeight;
		var ua = navigator.userAgent.toLowerCase();
		
		// clipping container should be ow/oh + the size of the shadow
		elmCache["clip"].style.width = ow + TransMenu.shadowSize +  2 + "px";
		elmCache["clip"].style.height = oh + TransMenu.shadowSize + 2 + "px";
		
		// same with content...
		elmCache["content"].style.width = ow + TransMenu.shadowSize + "px";
		elmCache["content"].style.height = oh + TransMenu.shadowSize + "px";
		
		contentHeight = oh + TransMenu.shadowSize;
		contentWidth = ow + TransMenu.shadowSize;
		
		dim = (iDirection == TransMenu.direction.down || iDirection == TransMenu.direction.up) ? contentHeight : contentWidth;
		if (iDirection == TransMenu.direction.left || iDirection == TransMenu.direction.up) {
			dim = -dim;
		}
		// set initially closed
		elmCache["content"].style[pos] = -dim - TransMenu.shadowSize + "px";
		elmCache["clip"].style.visibility = "hidden";
		
		// if *not* mac/ie 5
		if (ua.indexOf("mac") == -1 || ua.indexOf("gecko") > -1) {
			// set background div to offset size
			elmCache["background"].style.width = ow + "px";
			elmCache["background"].style.height = oh + "px";
			elmCache["background"].style.backgroundColor = TransMenu.backgroundColor;
			
			// shadow left starts at offset left and is offsetHeight pixels high
			elmCache["shadowRight"].style.left = ow + "px";
			// modify by thuyqt
			//elmCache["shadowRight"].style.height = oh - (TransMenu.shadowOffset - TransMenu.shadowSize) + "px";
			elmCache["shadowRight"].style.backgroundColor = TransMenu.shadowColor;
			
			// shadow bottom starts at offset height and is offsetWidth - shadowOffset 
			// pixels wide (we don't want the bottom and right shadows to overlap or we 
			// get an extra bright bottom-right corner)
			elmCache["shadowBottom"].style.top = oh + "px";
			elmCache["shadowBottom"].style.width = ow - TransMenu.shadowOffset + "px";
			elmCache["shadowBottom"].style.backgroundColor = TransMenu.shadowColor;
		}
		// mac ie is a little different because we use a PNG for the transparency
		else {
			// set background div to offset size
			elmCache["background"].firstChild.src = TransMenu.backgroundPng;
			elmCache["background"].firstChild.width = ow;
			elmCache["background"].firstChild.height = oh;
			
			// shadow left starts at offset left and is offsetHeight pixels high
			elmCache["shadowRight"].firstChild.src = TransMenu.shadowPng;
			elmCache["shadowRight"].style.left = ow + "px";
			elmCache["shadowRight"].firstChild.width = TransMenu.shadowSize;
			elmCache["shadowRight"].firstChild.height = oh - (TransMenu.shadowOffset - TransMenu.shadowSize);
			
			// shadow bottom starts at offset height and is offsetWidth - shadowOffset 
			// pixels wide (we don't want the bottom and right shadows to overlap or we 
			// get an extra bright bottom-right corner)
			elmCache["shadowBottom"].firstChild.src = TransMenu.shadowPng;
			elmCache["shadowBottom"].style.top = oh + "px";
			elmCache["shadowBottom"].firstChild.height = TransMenu.shadowSize;
			elmCache["shadowBottom"].firstChild.width = ow - TransMenu.shadowOffset;
		}
	}
        
	function initCache() {
		var menu = document.getElementById(id);
		// IE/win doesn't support * syntax, but does have the document.all thing
		var all = menu.all ? menu.all : menu.getElementsByTagName("*");
		
		elmCache = {};
		elmCache["clip"] = menu;
		elmCache["item"] = [];
		
		for (var i = 0, elm = null; elm = all[i]; i++) {
			switch (elm.className) {
				case "items":
				case "content":
				case "background":
				case "shadowRight":
				case "shadowBottom":
					elmCache[elm.className] = elm;
					break;
				case "item":
					elm._index = elmCache["item"].length;
					elmCache["item"][elm._index] = elm;
					break;
			}
		}
		// hack!
		_this.elmCache = elmCache;
	}

	function initEvents() {
		// hook item mouseover
		for (var i = 0, item = null; item = elmCache.item[i]; i++) {
			item.onmouseover = item_mouseover;
			item.onmouseout = item_mouseout;
			item.onclick = item_click;
		}
		
		// hook actuation
		if (typeof oActuator.tagName != "undefined") {
			oActuator.onmouseover = actuator_mouseover;
			oActuator.onmouseout = actuator_mouseout;
		}
		
		// hook menu mouseover
		elmCache["content"].onmouseover = content_mouseover;
		elmCache["content"].onmouseout = content_mouseout;
	}

	function highlight(oRow) {
		oRow.className = "item hover";
		if (childMenus[oRow._index])
		if (TransMenu.sub_indicator) {
			oRow.lastChild.firstChild.src = TransMenu.dingbatOn;
		}
	}
	
	function dehighlight(oRow) {
		oRow.className = "item";
		if (childMenus[oRow._index])
			if (TransMenu.sub_indicator) {
				oRow.lastChild.firstChild.src = TransMenu.dingbatOff;
			}
	}
	
	function item_mouseover() {
		if (!animating) {
			highlight(this);
			
			if (childMenus[this._index]) 
				childMenuSet.showMenu(childMenus[this._index]);
			else if (childMenuSet)
				childMenuSet.hide();
		}
	}
	
	function item_mouseout() {
		if (!animating) {
			if (childMenus[this._index])
				childMenuSet.hideMenu(childMenus[this._index]);
			else
			// otherwise child_deactivate will do this
				dehighlight(this);
		}
	}
	
	function item_click() {
		if (!animating) {
			if (_this.items[this._index].url) {
				if (_this.items[this._index].target =="1") {
					window.open(_this.items[this._index].url, "_blank");
				}
				else if (_this.items[this._index].target =="2") {
					window.open(_this.items[this._index].url, '', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=780,height=550');
				}
				else if (_this.items[this._index].target =="3") {
					location.href = void(0);
				}
				else{
					location.href = _this.items[this._index].url;
				}
			}
		}
	}
	
	function actuator_mouseover() {
		parentMenuSet.showMenu(_this);
	}
	
	function actuator_mouseout() {
		parentMenuSet.hideMenu(_this);
	}
	
	function content_mouseover() {
		if (!animating) {
			parentMenuSet.showMenu(_this);
			_this.onmouseover();
		}
	}
	
	function content_mouseout() {
		if (!animating) {
			parentMenuSet.hideMenu(_this);
		}
	}
	
	function child_mouseover() {
		if (!animating) {
			parentMenuSet.showMenu(_this);
		}
	}
	
	function child_deactivate() {
		for (var i = 0; i < childMenus.length; i++) {
			if (childMenus[i] == this) {
				dehighlight(elmCache["item"][i]);
				break;
			}
		}
	}
	
	function child_queue() {
		parentMenuSet.hideMenu(_this);
	}
	
	function child_dequeue() {
		parentMenuSet.showMenu(_this);
	}
	
	function toString() {
		var aHtml = [];
		
		var sClassName = "transMenu" + (oActuator.constructor != TransMenuItem ? " top" : "");
				
		for( var i=0, item=null; item = this.items[i]; i++ ) {
			aHtml[i] = item.toString(childMenus[i]);
		}
		
		var retval = '';		
		retval += '<div id="' + id + '" class="' + sClassName + '">' +
		'<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">';
		
		var ijoin = '</tr><tr>';
		if( this.is ) {
			ijoin = '';
		}
		retval += '<tr>'+ aHtml.join(ijoin) +'</tr>';
		
		retval += '</table>' +
		'<div class="shadowBottom"><img src="' + TransMenu.spacerGif + '" width="1" height="1"></div>' +
		'<div class="shadowRight"><img src="' + TransMenu.spacerGif + '" width="1" height="1"></div>' +
		'<div class="background"><img src="' + TransMenu.spacerGif + '" width="1" height="1"></div>' +
		'</div></div>';
		
		return retval;
	}
}
	
	
//==================================================================================================
// TransMenuSet
//==================================================================================================
// iDirection           : The direction to slide out. One of TransMenu.direction.
// iLeft                : Left pixel offset of menus from actuator
// iTop                 : Top pixel offset of menus from actuator
// iReferencePoint      : Corner of actuator to measure from. One of TransMenu.referencePoint.
//==================================================================================================
TransMenuSet.registry = [];

function TransMenuSet(iDirection, iLeft, iTop, iReferencePoint) {
	
	// public methods
	this.addMenu = addMenu;
	this.showMenu = showMenu;
	this.hideMenu = hideMenu;
	this.hide = hide;
	this.hideCurrent = hideCurrent;
	
	// initialization
	var menus = [];
	var _this = this;
	var current = null;
	
	this.index = TransMenuSet.registry.length;
	TransMenuSet.registry[this.index] = this;
	
	// method implimentations...
	function addMenu(oActuator, is) {
		if( typeof is == 'undefined' )
			is = false;
		
		var m = new TransMenu(oActuator, iDirection, iLeft, iTop, iReferencePoint, this, is);
		m.is = is;
		menus[menus.length] = m;
		
		return m;
	}
	
	function showMenu(oMenu) {
		if (oMenu != current) {
			// close currently open menu
			if (current != null) hide(current);
			
			// set current menu to this one
			current = oMenu;
			
			// if this menu is closed, open it
			oMenu.show();
		}
		else {
			// hide pending calls to close this menu
			cancelHide(oMenu);
		}
	}
	
	function hideMenu(oMenu) {
		//dbg_dump("hideMenu a " + oMenu.index);
		if (current == oMenu && oMenu.isOpen) {
			//dbg_dump("hideMenu b " + oMenu.index);
			if (!oMenu.hideTimer)
				scheduleHide(oMenu);
		}
	}
	
	function scheduleHide(oMenu) {
		//dbg_dump("scheduleHide " + oMenu.index);
		oMenu.onqueue();
		oMenu.hideTimer = window.setTimeout("TransMenuSet.registry[" + _this.index + "].hide(TransMenu.registry[" + oMenu.index + "])", TransMenu.hideDelay);
	}
	
	function cancelHide(oMenu) {
		//dbg_dump("cancelHide " + oMenu.index);
		if (oMenu.hideTimer) {
			oMenu.ondequeue();
			window.clearTimeout(oMenu.hideTimer);
			oMenu.hideTimer = null;
		}
	}
	
	function hide(oMenu) {
		if (!oMenu && current)
			oMenu = current;
		
		if (oMenu && current == oMenu && oMenu.isOpen) {
			hideCurrent();
		}
	}
	
	function hideCurrent() {
		if (null != current) {
			cancelHide(current);
			current.hideTimer = null;
			current.hide();
			current = null;
		}
	}
}
	
	//==================================================================================================
	// TransMenuItem (internal)
	// represents an item in a dropdown
	//==================================================================================================
	// sText        : The item display text
	// sUrl         : URL to load when the item is clicked
	// oParent      : Menu this item is a part of
	//==================================================================================================
function TransMenuItem(sText, sUrl, oParent, sTarget,active,id) {
	this.toString = toString;
	this.text = sText;
	this.url = sUrl;
	this.target = sTarget;
	
	this.parentMenu = oParent;
	
	function toString(bDingbat) {
		var sDingbat = bDingbat ? TransMenu.dingbatOff : TransMenu.spacerGif;
		var iEdgePadding = TransMenu.itemPadding + TransMenu.menuPadding;
		var sPaddingLeft = "padding:" + TransMenu.itemPadding + "px; padding-left:" + iEdgePadding + "px;";
		var sPaddingRight = "padding:" + TransMenu.itemPadding + "px; padding-right:" + iEdgePadding + "px;";
		
		var menustring = '';
		//menustring += '<tr class="item">';
		menustring += '<td class="item" nowrap style="' + sPaddingLeft + '" id="' + id + '">'+ sText +'</td>';
		
		if(TransMenu.sub_indicator) {
			menustring += '<td class="item" style="' + sPaddingRight + '">' +
			'<img src="' + sDingbat + '" ></td>';
		}
		
		//menustring += '</tr>';
		
		return menustring;
	}
}

//=====================================================================
// Accel[erated] [an]imation object
// change a property of an object over time in an accelerated fashion
//=====================================================================
// obj  : reference to the object whose property you'd like to animate
// prop : property you would like to change eg: "left"
// to   : final value of prop
// time : time the animation should take to run
// zip	: optional. specify the zippiness of the acceleration. pick a
//		  number between -1 and 1 where -1 is full decelerated, 1 is
//		  full accelerated, and 0 is linear (no acceleration). default
//		  is 0.
// unit	: optional. specify the units for use with prop. default is
//		  "px".
//=====================================================================
// bezier functions lifted from the lib_animation.js file in the
// 13th Parallel API. www.13thparallel.org
//=====================================================================

function Accelimation(from, to, time, zip) {
	if (typeof zip == "undefined")
		zip  = 0;
	if (typeof unit == "undefined")
		unit = "px";
	
	this.x0 = from;
	this.x1		= to;
	this.dt		= time;
	this.zip	= -zip;
	this.unit	= unit;
	this.timer = null;
	this.onend = new Function();
	this.onframe = new Function();
}

//=====================================================================
// public methods
//=====================================================================

// after you create an accelimation, you call this to start it-a runnin'
Accelimation.prototype.start = function() {
	this.t0 = new Date().getTime();
	this.t1 = this.t0 + this.dt;
	var dx	= this.x1 - this.x0;
	this.c1 = this.x0 + ((1 + this.zip) * dx / 3);
	this.c2 = this.x0 + ((2 + this.zip) * dx / 3);
	Accelimation._add(this);
};

// and if you need to stop it early for some reason...
Accelimation.prototype.stop = function() {
	Accelimation._remove(this);
};

//=====================================================================
// private methods
//=====================================================================

// paints one frame. gets called by Accelimation._paintAll.
Accelimation.prototype._paint = function(time) {
	if (time < this.t1) {
		var elapsed = time - this.t0;
		this.onframe(Accelimation._getBezier(elapsed/this.dt,this.x0,this.x1,this.c1,this.c2));
	}
	else
		this._end();
};

// ends the animation
Accelimation.prototype._end = function() {
	Accelimation._remove(this);
	this.onframe(this.x1);
	this.onend();
};

//=====================================================================
// static methods (all private)
//=====================================================================

// add a function to the list of ones to call periodically
Accelimation._add = function(o) {
	var index = this.instances.length;
	this.instances[index] = o;
	// if this is the first one, start the engine
	if (this.instances.length == 1) {
		this.timerID = window.setInterval("Accelimation._paintAll()", this.targetRes);
	}
};

// remove a function from the list
Accelimation._remove = function(o) {
	for (var i = 0; i < this.instances.length; i++) {
		if (o == this.instances[i]) {
			this.instances = this.instances.slice(0,i).concat( this.instances.slice(i+1) );
			break;
		}
	}
	// if that was the last one, stop the engine
	if (this.instances.length == 0) {
		window.clearInterval(this.timerID);
		this.timerID = null;
	}
};

// "engine" - call each function in the list every so often
Accelimation._paintAll = function() {
	var now = new Date().getTime();
	for (var i = 0; i < this.instances.length; i++) {
		this.instances[i]._paint(now);
	}
};

// Bezier functions:
Accelimation._B1 = function(t) { return t*t*t };
Accelimation._B2 = function(t) { return 3*t*t*(1-t) };
Accelimation._B3 = function(t) { return 3*t*(1-t)*(1-t) };
Accelimation._B4 = function(t) { return (1-t)*(1-t)*(1-t) };

//Finds the coordinates of a point at a certain stage through a bezier curve
Accelimation._getBezier = function(percent,startPos,endPos,control1,control2) {
	return endPos * this._B1(percent) + control2 * this._B2(percent) + control1 * this._B3(percent) + startPos * this._B4(percent);
};

//=====================================================================
// static properties
//=====================================================================

Accelimation.instances = [];
Accelimation.targetRes = 10;
Accelimation.timerID = null;

//=====================================================================
// IE win memory cleanup
//=====================================================================

if (window.attachEvent) {
	var cearElementProps = [
		'data',
		'onmouseover',
		'onmouseout',
		'onmousedown',
		'onmouseup',
		'ondblclick',
		'onclick',
		'onselectstart',
		'oncontextmenu'
	];

	window.attachEvent("onunload", function() {
			var el;
			for(var d = document.all.length;d--;) {
				el = document.all[d];
				for(var c = cearElementProps.length;c--;) {
					el[cearElementProps[c]] = null;
				}
			}
		}
	);
}

var WCH_Constructor = function() {
	//	exit point for anything but IE5.0+/Win
	if ( !(document.all && document.getElementById && !window.opera && navigator.userAgent.toLowerCase().indexOf("mac") == -1) ) {
		this.Apply = function() {};
		this.Discard = function() {};
		return;
	}

	//	private properties
	var _bIE55 = false;
	var _bIE6 = false;
	var _oRule = null;
	var _bSetup = true;
	var _oSelf = this;

	//	public: hides windowed controls
	this.Apply = function(vLayer, vContainer, bResize) {
		if (_bSetup) _Setup();

		if ( _bIE55 && (oIframe = _Hider(vLayer, vContainer, bResize)) ) {
			oIframe.style.visibility = "visible";
		}
		else if(_oRule != null) {
			_oRule.style.visibility = "hidden";
		}
	};

	//	public: shows windowed controls
	this.Discard = function(vLayer, vContainer) {
		if ( _bIE55 && (oIframe = _Hider(vLayer, vContainer, false)) ) {
			oIframe.style.visibility = "hidden";
		}
		else if(_oRule != null) {
			_oRule.style.visibility = "visible";
		}
	};

	//	private: returns iFrame reference for IE5.5+
	function _Hider(vLayer, vContainer, bResize) {
		var oLayer = _GetObj(vLayer);
		var oContainer = ( (oTmp = _GetObj(vContainer)) ? oTmp : document.getElementsByTagName("body")[0] );
		if (!oLayer || !oContainer)
			return;
		//	is it there already?
		var oIframe = document.getElementById("WCHhider" + oLayer.id);

		//	if not, create it
		if ( !oIframe ) {
			//	IE 6 has this property, IE 5 not. IE 5.5(even SP2) crashes when filter is applied, hence the check
			var sFilter = (_bIE6) ? "filter:progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0);" : "";
			//	get z-index of the object
			var zIndex = oLayer.style.zIndex;
			if ( zIndex == "" ) zIndex = oLayer.currentStyle.zIndex;
			zIndex = parseInt(zIndex);
			//	if no z-index, do nothing
			if ( isNaN(zIndex) ) return null;
			//	if z-index is below 2, do nothing (no room for Hider)
			if (zIndex < 2) return null;
			//	go one step below for Hider
			zIndex--;
			var sHiderID = "WCHhider" + oLayer.id;
			oContainer.insertAdjacentHTML("afterBegin", '<iframe class="WCHiframe" src="javascript:false;" id="' + sHiderID + '" scroll="no" frameborder="0" style="position:absolute;visibility:hidden;' + sFilter + 'border:0;top:0;left;0;width:0;height:0;background-color:#ccc;z-index:' + zIndex + ';"></iframe>');
			oIframe = document.getElementById(sHiderID);
			//	then do calculation
			_SetPos(oIframe, oLayer);
		}
		else if (bResize) {
			//	resize the iFrame if asked
			_SetPos(oIframe, oLayer);
		}
		return oIframe;
	};

	//	private: set size and position of the Hider
	function _SetPos(oIframe, oLayer) {
		//	fetch and set size
		oIframe.style.width = oLayer.offsetWidth + "px";
		oIframe.style.height = oLayer.offsetHeight + "px";
		//	move to specified position
		oIframe.style.left = oLayer.offsetLeft + "px";
		oIframe.style.top = oLayer.offsetTop + "px";
	};

	//	private: returns object reference
	function _GetObj(vObj) {
		var oObj = null;
		switch( typeof(vObj) ) {
			case "object":
				oObj = vObj;
				break;
			case "string":
				oObj = document.getElementById(vObj);
				break;
		}
		return oObj;
	};

	//	private: setup properties on first call to Apply
	function _Setup() {
		_bIE55 = (typeof(document.body.contentEditable) != "undefined");
		_bIE6 = (typeof(document.compatMode) != "undefined");

		if (!_bIE55) {
			if (document.styleSheets.length == 0)
				document.createStyleSheet();
			var oSheet = document.styleSheets[0];
			oSheet.addRule(".WCHhider", "visibility:visible");
			_oRule = oSheet.rules(oSheet.rules.length-1);
		}

		_bSetup = false;
	};
};
var WCH = new WCH_Constructor();
