/*****************************************************
 * 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--

 * Überarbeitet typo.intervation.de 2007
 *****************************************************/

ypSlideOutMenu.Registry = []
strCSS = '';

// constructor
function ypSlideOutMenu(id, dir, left, top, width, height, parentid)
{
	this.ie  = document.all ? 1 : 0
	this.ns4 = document.layers ? 1 : 0
	this.dom = document.getElementById ? 1 : 0
	
        //alert(id+"Container");
	if (this.ie || this.ns4 || this.dom) {
		var m = document.getElementById(id+"Container");
       // get the menu-item-container
       var mItemCont = m.firstChild.firstChild;
       // get the item-height
       var itemHeight = mItemCont.firstChild.offsetHeight;
       // get the item-count
       var itemCount = mItemCont.childNodes.length;
       // calc the height (+1 for the bottom shadow)
       var m_hight = (itemHeight * itemCount) +1; 
		
		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 : m_hight
		this.hideTimer	 = false
		this.aniTimer	 = false
		this.open		 = false
		this.over		 = false
		this.startTime	 = 0

		this.sliding	 = false
		this.parentid	 = parentid
		this.showcount	 = 0

		// global reference to this object
		this.gRef = "ypSlideOutMenu_"+id
		eval(this.gRef+"=this")
		
		this.initleft = left
		this.inittop = top
		this.initwidth = width
		this.initheight = height
		this.showcount = 0;


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

		var d = document

        //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 += 'width:' + width + 'px;'+ ypSlideOutMenu.korek_css +';'
		strCSS += 'height:' + m_hight + 'px; '
		strCSS += 'clip:rect(0 ' + width + ' ' + m_hight + ' 0); '
		strCSS += '}'
        //strCSS += '</style>';
		
         //d.write(strCSS);
		this.load()
	}
}

ypSlideOutMenu.set_level_one = function(vert, korek_css, aniLen, hideDelay, minCPUResolution, kore_ns_x, kore_ns_y, kore_so_x, kore_so_y) {
	
	ypSlideOutMenu.horz_vert = vert;
	ypSlideOutMenu.korek_css = korek_css 
	ypSlideOutMenu.aniLen = aniLen
	ypSlideOutMenu.hideDelay = hideDelay
	ypSlideOutMenu.minCPUResolution = minCPUResolution
	ypSlideOutMenu.kore_ns_x = kore_ns_x
	ypSlideOutMenu.kore_ns_y = kore_ns_y
	ypSlideOutMenu.kore_so_x = kore_so_x
	ypSlideOutMenu.kore_so_y = kore_so_y
}
ypSlideOutMenu.writeCSS = function() {
	
	//alert(strCSS);
	document.write('<style type="text/css">'+strCSS+'</style>');
	//alert(strCSS);

}

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

	if (!obj1 || !obj2) window.setTimeout(this.gRef + ".load()", 1000)
	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.hideMenu('" + this.id + "')")

		//set initial state
		this.endSlide()
	}
}
	
ypSlideOutMenu.showMenu = function(id, layerid, idw, level)
{
	var reg = ypSlideOutMenu.Registry
	var obj = ypSlideOutMenu.Registry[id]
	if(layerid) {
		idw.onactivate = function() { repositionMenu(idw, layerid, level); }
		
	}
		
	if (obj.container) {
		obj.over = true

		// close other menus.
		// for (menu in reg) if (id != menu) ypSlideOutMenu.hide(menu)

		// if this menu is scheduled to close, cancel it.
		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }

		obj.showcount++;

		// 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.container) {
		if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
		
		obj.showcount--;
		
		obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
	}
}

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

	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
	
	// flag that this scheduled event has occured.
	obj.hideTimer = 0
	
	var close = true;
	
	for (var menu in reg) {
	// for each child, if either
	// 1. the child is open or
	// 2. the child is closing (but hasn't closed yet)
	// then we don't close this menu.
		var pid = ypSlideOutMenu.Registry[menu].parentid;
		if(pid == id) {
			if (ypSlideOutMenu.Registry[menu].open) close = false;
			if (!ypSlideOutMenu.Registry[menu].open && ypSlideOutMenu.Registry[menu].sliding) close = false;
		}
	}

	// if this menu is open, close it.
	if (obj.open && !obj.aniTimer && close && !obj.showcount) 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.sliding = true;
	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)
	this.sliding = false;
	if ((this.open && !this.over) || (!this.open && this.over) && (!this.parent || this.parent.open)) {
		this.startSlide(this.over)
	} else {
		var overchild = false;
		var reg = ypSlideOutMenu.Registry
		for (var menu in reg) {
			var pid = ypSlideOutMenu.Registry[menu].parentid
			if (pid == this.id) overchild = ypSlideOutMenu.Registry[menu].over ? true : overchild
		}
		if(!overchild && this.parentid && !ypSlideOutMenu.Registry[this.parentid].over) ypSlideOutMenu.hide(this.parentid);
	}
}

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])
}

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


		
		
		
		
function getPosition(element) {
/* der Aufruf dieser Funktion ermittelt die absoluten Koordinaten
   des Objekts element */
	 
  var elem=element,tagname="",x=0,y=0;
  /* solange elem ein Objekt ist und die Eigenschaft offsetTop enthaelt
   wird diese Schleife fuer das Element und all seine Offset-Eltern ausgefuehrt */
   
  while ((typeof(elem)=="object")&&(typeof(elem.tagName)!="undefined"))
  {
	 
    y+=elem.offsetTop;     /* Offset des jeweiligen Elements addieren */
    x+=elem.offsetLeft;    /* Offset des jeweiligen Elements addieren */
	
    tagname=elem.tagName.toUpperCase(); /* tag-Name ermitteln, Grossbuchstaben */
	
	/* wenn beim Body-tag angekommen elem fuer Abbruch auf 0 setzen */

    if (tagname=="HTML") {
      elem=0;
	  
	}
	if (tagname=="BODY" && navigator.userAgent.indexOf("Opera")>-1) {
		elem=0;
		
	}
	if (tagname=="BODY" && !navigator.userAgent.indexOf("Opera")>-1) {
		elem=0;
		
	}

	/* wenn elem ein Objekt ist und offsetParent enthaelt
   Offset-Elternelement ermitteln */
    if (typeof(elem)=="object")
      if (typeof(elem.offsetParent)=="object")
        elem=elem.offsetParent;
		
	
  }
	
/* Objekt mit x und y zurueckgeben */
  position=new Object();
  position.x=x;
  position.y=y;
  return position;
}
// this function repositions a menu to the speicified offset from center
function repositionMenu(menu, offset, level) {
	
	/* Element-Objekt zur ID ermitteln */
	element=document.getElementById(offset);
	 //alert(document.getElementById(offset).pageXOffset);
/* Position bestimmen und melden */
	//alert(document.getElementById(offset).offsetWidth);
// the new left position should be the center of the window + the offset
	var newLeft = getPosition(element);
  
	if(level)
		var erx = newLeft.x+document.getElementById(offset).offsetWidth;
	else {
		if(ypSlideOutMenu.horz_vert == "down") {
			erx = newLeft.x;
			newLeft.y = newLeft.y+ element.offsetHeight;
		}
		else {
			erx = newLeft.x + element.offsetWidth;
			newLeft.y = newLeft.y;
		}
		
	}
		
	
// setting the left position in netscape is a little different than IE
	menu.container.style ? menu.container.style.left = erx+ypSlideOutMenu.kore_so_x + "px" : menu.container.left = newLeft.x;
	menu.container.style ? menu.container.style.top = newLeft.y+ypSlideOutMenu.kore_so_y + "px" : menu.container.top = newLeft.y;
}
 
// this function calculates the window's width - different for IE and netscape
function getWindowWidth()
{
	return window.innerWidth ? window.innerWidth : document.body.offsetWidth;
}