/*****************************************************
 * ypSlideOutMenu
 * 3/04/2001
 * 
 * a nice little script to create exclusive, slide-out
 * menus for ns4, ns6, mozilla, opera, ie4, ie5 on 
 * mac and win32. I've got no linux or unix to test on but 
 * it should(?) work... 
 *
 * --youngpup--
 *****************************************************/

ypSlideOutMenu.Registry = []
ypSlideOutMenu.aniLen = 150
ypSlideOutMenu.hideDelay = 500
ypSlideOutMenu.minCPUResolution = 1
ypSlideOutMenu.minMenuWidth = 140
ypSlideOutMenu.pageWidth = 775

// constructor
function ypSlideOutMenu(id, dir, left, top, width, height, parentMenu)
{	
	this.ie  = document.all ? 1 : 0
	this.ns4 = document.layers ? 1 : 0
	this.dom = document.getElementById ? 1 : 0
	
	if (this.ie || this.ns4 || this.dom) {
		this.id			 = id
		this.dir		 = dir
		this.orientation = dir == "left" || dir == "right" ? "h" : "v"
		this.dirType	 = dir == "right" || dir == "down" ? "-" : "+"
		this.dim = this.orientation == "h" ? width : height
		this.hideTimer	 = false
		this.aniTimer	 = false
		this.open		 = false
		this.over		 = false
		this.startTime	 = 0
		this.left = left
		this.parentMenu	 = parentMenu

		this.gRef = "ypSlideOutMenu_"+id
		eval(this.gRef+"=this")

		// add this menu object to an internal list of all menus
		ypSlideOutMenu.Registry[id] = this

		var d = document

                var strCSS = '<style type="text/css">';
                strCSS += '#' + this.id + 'Container { visibility:hidden; '
				strCSS += 'left:' + left + 'px; '
				strCSS += 'top:' + top + 'px; '
				strCSS += 'overflow:hidden; z-index:10000; } '
				strCSS += '#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; '
				strCSS += '}'
                strCSS += '</style>';

                //d.write('<textarea>' + strCSS + '</textarea>')
                d.write(strCSS)
                
		this.load()
	}

}

ypSlideOutMenu.prototype.load = function() {
	var d = document
	var lyrId1 = this.id + "Container"
	var lyrId2 = this.id + "Content"
	var obj1 = this.dom ? d.getElementById(lyrId1) : this.ie ? d.all[lyrId1] : d.layers[lyrId1]
	if (obj1) var obj2 = this.ns4 ? obj1.layers[lyrId2] : this.ie ? d.all[lyrId2] : d.getElementById(lyrId2)
	var temp
	
	//gives menu's a min width of ypSlideOutMenu.minMenuWidth
	
	obj1.style.left = 0 + 'px'
	
	width = obj2.offsetWidth
	height = obj2.offsetHeight
	
	if (width < ypSlideOutMenu.minMenuWidth) {
		obj1.style.width = ypSlideOutMenu.minMenuWidth + 2 + 'px'
		obj2.style.width = ypSlideOutMenu.minMenuWidth + 'px'
	} else {
		obj1.style.width = width + 2 + 'px'
		obj2.style.width = width + 'px'
	}
	
	//takes the new width from the elements
	width = obj2.offsetWidth
	height = obj2.offsetHeight
	
	obj1.style.left = this.left + 'px'
	
	obj1.style.height = height + 'px'	
	this.dim = this.orientation == "h" ? width : height
	
	//places the element inside the page
	if (this.dir == 'down') {
		if (obj1.offsetLeft + width > ypSlideOutMenu.pageWidth) {
			obj1.style.left = ypSlideOutMenu.pageWidth - width + 'px'
		}
	}
	
	if (this.dir == 'right') {
		if (obj1.offsetLeft + width > ypSlideOutMenu.pageWidth) {
			obj1.style.left = obj1.offsetLeft - (getObj(this.parentMenu + 'Container').offsetWidth + obj1.offsetWidth - 10) + 'px'
			this.dir = 'left'
			this.orientation = "h"
			this.dirType = "+"
			this.dim = width
		}
	}
	
	
	if (!obj1 || !obj2) window.setTimeout(this.gRef + ".load()", 100)
	else {
		this.container	= obj1
		this.menu		= obj2
		this.style		= this.ns4 ? this.menu : this.menu.style
		this.homePos	= eval("0" + this.dirType + this.dim)
		this.outPos		= 0
		this.accelConst	= (this.outPos - this.homePos) / ypSlideOutMenu.aniLen / ypSlideOutMenu.aniLen 

		// set event handlers.
		if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		//this.menu.onmouseover = new Function("ypSlideOutMenu.showMenu('" + this.id + "')");
		//this.menu.onmouseout = new Function("ypSlideOutMenu.hideAll()");

		//set initial state
		this.endSlide()
	}
}
	
ypSlideOutMenu.showMenu = function(id)
{
	var reg = ypSlideOutMenu.Registry
	var obj = ypSlideOutMenu.Registry[id]
	
	if (obj != null) {
		
		if (obj.container) {
			obj.over = true
			
			// close other menus. -- comment out to disable closing other menu's
			for (menu in reg) {
				if (menu != id) {
					ypSlideOutMenu.hide(menu)
				}
			}
			
			// if this menu is scheduled to close, cancel it.
			if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
	
			// if this menu is closed, open it.
			if (!obj.open && !obj.aniTimer) {
				reg[id].startSlide(true)
			}
		}
		
	}
}

ypSlideOutMenu.showMenus = function(menus) 
{
	var menuArray = menus.split(":")
	for (var i = 0; i < menuArray.length; i++) {
		id = menuArray[i]
		
		var reg = ypSlideOutMenu.Registry
		var obj = ypSlideOutMenu.Registry[id]		
		
		if (obj != null) {
			
			if (obj.container) {
				obj.over = true
				
				// close other menus.
				for (menu in reg) {
					if (!valueInArray(menu, menuArray)) {
						ypSlideOutMenu.hide(menu)
					}
				}
				
				// if this menu is scheduled to close, cancel it.
				if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
		
				// if this menu is closed, open it.
				if (!obj.open && !obj.aniTimer) {
					reg[id].startSlide(true)
				}
			}	
		}
		
				
	}
}

ypSlideOutMenu.hideMenu = function(id)
{
	// schedules the menu to close after <hideDelay> ms, which
	// gives the user time to cancel the action if they accidentally moused out
	var obj = ypSlideOutMenu.Registry[id]
	
	if (obj != null) {
	
		if (obj.container) {
			if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
			obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
		}
		
	}
}

ypSlideOutMenu.hideMenus = function(menus)
{
	// schedules the menu to close after <hideDelay> ms, which
	// gives the user time to cancel the action if they accidentally moused out
	var menuArray = menus.split(":")
	for (var i = 0; i < menuArray.length; i++) {
		id = menuArray[i]
		var obj = ypSlideOutMenu.Registry[id]
		
		if (obj != null) {
		
			if (obj.container) {
				if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
				obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
			}
			
		}
		
	}
}

ypSlideOutMenu.hideAll = function()
{
	var reg = ypSlideOutMenu.Registry
	for (menu in reg) {
		ypSlideOutMenu.hide(menu);
		if (menu.hideTimer) window.clearTimeout(menu.hideTimer);
	}
}

ypSlideOutMenu.hide = function(id)
{
	var obj = ypSlideOutMenu.Registry[id]
	obj.over = false

	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
	
	// flag that this scheduled event has occured.
	obj.hideTimer = 0

	// if this menu is open, close it.
	if (obj.open && !obj.aniTimer) obj.startSlide(false)
}

ypSlideOutMenu.prototype.startSlide = function(open) {
	this[open ? "onactivate" : "ondeactivate"]()
	this.open = open
	if (open) this.setVisibility(true)
	this.startTime = (new Date()).getTime()	
	this.aniTimer = window.setInterval(this.gRef + ".slide()", ypSlideOutMenu.minCPUResolution)
}

ypSlideOutMenu.prototype.slide = function() {
	var elapsed = (new Date()).getTime() - this.startTime
	if (elapsed > ypSlideOutMenu.aniLen) this.endSlide()
	else {
		var d = Math.round(Math.pow(ypSlideOutMenu.aniLen-elapsed, 2) * this.accelConst)
		if (this.open && this.dirType == "-")		d = -d
		else if (this.open && this.dirType == "+")	d = -d
		else if (!this.open && this.dirType == "-")	d = -this.dim + d
		else										d = this.dim + d

		this.moveTo(d)
	}
}

ypSlideOutMenu.prototype.endSlide = function() {
	this.aniTimer = window.clearTimeout(this.aniTimer)
	this.moveTo(this.open ? this.outPos : this.homePos)
	if (!this.open) this.setVisibility(false)
	if ((this.open && !this.over) || (!this.open && this.over)) {
		this.startSlide(this.over)
	}
}

ypSlideOutMenu.prototype.setVisibility = function(bShow) { 
	var s = this.ns4 ? this.container : this.container.style
	s.visibility = bShow ? "visible" : "hidden"
}
ypSlideOutMenu.prototype.moveTo = function(p) { 
	this.style[this.orientation == "h" ? "left" : "top"] = this.ns4 ? p : p + "px"
}
ypSlideOutMenu.prototype.getPos = function(c) {
	return parseInt(this.style[c])
}

function valueInArray(cvalue, carray) {
	for (var i = 0; i < carray.length; i++) {
		if (carray[i] == cvalue) {
			return true
		}
	}	
	return false
}

function findPosX(obj) {
    var cl = 0;
    if (obj.offsetParent)
    	cl = obj.offsetLeft + findPosX(obj.offsetParent)
    else if
    	(obj.x) cl += obj.x;
    
    return cl;
}

function findPosY(obj) {
    var cl = 0;
    if (obj.offsetParent)
    	cl = obj.offsetTop + findPosY(obj.offsetParent)
    else if
    	(obj.y) cl += obj.y;
    
    return cl;
}

function getObj(objName) {
	return document.getElementById(objName);	
}


/* custom */

function highlightMenuItems(parentParentMenuItem, parentMenuItem) {
	getObj(parentParentMenuItem).style.color = '#bbbbbb'
	if (parentMenuItem != null) {
		getObj(parentMenuItem).style.backgroundColor = '#4E575E'
	}
}

function unhighlightMenuItems(parentParentMenuItem, parentMenuItem) {
	getObj(parentParentMenuItem).style.color = ''
	if (parentMenuItem != null) {
		getObj(parentMenuItem).style.backgroundColor = ''
	}
}

menus = new Array
function createmenu(id, level, parentItem, parentMenu) {
	if (level == 'level2') {		
		var leftpos = findPosX(getObj("act" + id)) - findPosX(getObj("content")) + 5;
		var toppos  = findPosY(getObj("act" + id)) + getObj("menubar").offsetHeight - findPosY(getObj("content"))-2
		menus[menus.length] = new ypSlideOutMenu("menu" + id, 'down', leftpos, toppos, null, null);
	} else if (level == 'level3') {		
		var leftpos = findPosX(getObj(parentItem)) - findPosX(getObj("content")) + getObj(parentMenu + 'Container').offsetWidth-5
		var toppos 	= findPosY(getObj(parentItem)) + getObj(parentMenu + "Content").offsetHeight-6
		menus[menus.length] = new ypSlideOutMenu("menu" + id, 'right', leftpos, toppos, null, null, parentMenu);	
	}
}

// events
ypSlideOutMenu.prototype.onactivate		= function() { }
ypSlideOutMenu.prototype.ondeactivate	= function() { }