/*****************************************************
* 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--
*****************************************************/
goodClient= document.getElementById
ypSlideOutMenu.Registry = []
ypSlideOutMenu.aniLen = 200
ypSlideOutMenu.hideDelay = 500
ypSlideOutMenu.minCPUResolution = 10

function ypSlideOutMenu(id, dir, height,width,top,left){
if (!goodClient) return;
	this.id = id
	this.dir = dir
	this.orientation = dir == "left" || dir == "right" ? "h" : "v"
	this.dirType = dir == "right" || dir == "down" ? "-" : "+"
	this.heigth= height
	this.width= width
	this.top=top
	this.left=left
	this.dim = height
	this.hideTimer = false
	this.aniTimer = false
	this.open = false
	this.over = false
	this.startTime = 0
	this.gRef = "ypSlideOutMenu_"+id
	eval(this.gRef+"=this")
	ypSlideOutMenu.Registry[id] = this
var d = document
d.write('<style type="text/css">')
d.write('#' + this.id + 'Container { visibility:hidden; ')
d.write('left:' + left + 'px; ')
d.write('top:' + top + 'px; ')
d.write('overflow:hidden; }')
d.write('#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; ')
d.write('width:' + width + 'px; ')
d.write('height:' + height + 'px; ')
//d.write('clip:rect(0 ' + width + ' ' + height + ' 0); ')
d.write('}')
d.write('</style>')
	this.load()
}

ypSlideOutMenu.prototype.load = function() {
if(!goodClient) return;
	var d = document
	var lyrId1 = this.id + "Container"
	var lyrId2 = this.id + "Content"
	var obj1 = d.getElementById(lyrId1)
	if (obj1) var obj2 = d.getElementById(lyrId2)
	var temp
	if (!obj1 || !obj2) window.setTimeout(this.gRef + ".load()", 100)
	else {
		this.container = obj1
		this.menu = obj2
		this.style = this.menu.style
		
		//new code
		this.homePos = eval("0" + this.dirType + this.dim)
		this.outPos = 0
		
		this.accelConst = (this.outPos - this.homePos) / ypSlideOutMenu.aniLen / ypSlideOutMenu.aniLen 
		//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 + "')")
		this.endSlide()
	}
}

ypSlideOutMenu.showMenu = function(id){
if(!goodClient) return;
	
	var reg = ypSlideOutMenu.Registry
	var obj = ypSlideOutMenu.Registry[id]
	if (obj.container) {
		obj.over = true
		for (menu in reg) if (id != menu) ypSlideOutMenu.hide(menu)
		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
		if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
	}
}

ypSlideOutMenu.hideMenu = function(id){
if(!goodClient) return;
	var obj = ypSlideOutMenu.Registry[id]
	if (obj.container) {
		if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
			obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
		}
}

ypSlideOutMenu.hide = function(id){
	var obj = ypSlideOutMenu.Registry[id]
	obj.over = false
	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
	obj.hideTimer = 0
	if (obj.open && !obj.aniTimer) obj.startSlide(false)
}

ypSlideOutMenu.prototype.startSlide = function(open){
	this[open ? "onactivate" : "ondeactivate"]()
	this.open = open
	if (open){
		//adjustes x-position according to document size
		var el= document.getElementsByTagName("body")[0]; 
		var xmargin= (el.offsetWidth-800)/2;
		//this.menu.style["left"]= this.left + xmargin + "px";
		if(xmargin>0){
			this.container.style["left"]= this.left + xmargin + "px";
			//this.menu.style["left"]= this.left + xmargin +"px"; 
			//NOTE, THIS IS BAD CODE: menu is positioned relatively to it's conteiner, even thou 
			//both container and menu are positioned absolutely
			//=> this would shift menu 2 x (this.left + xmargin + "px") from the left corner
		}
		//else x-position is kept constant
		
	}
	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"
	this.container.style.visibility = bShow ? "visible" : "hidden"
}

ypSlideOutMenu.prototype.moveTo = function(p){ 
	this.style[this.orientation == "h" ? "left" : "top"] = p + "px"
}

ypSlideOutMenu.prototype.getPos = function(c) {
	return parseInt(this.style[c])
}
ypSlideOutMenu.prototype.onactivate = function() { }
ypSlideOutMenu.prototype.ondeactivate = function() { }


/*
	for (var i = 0; i < menus.length; i++) {
		menus[i].onactivate = new Function("document.getElementById('act" + i + "').className='active';");
		menus[i].ondeactivate = new Function("document.getElementById('act" + i + "').className='';");
	}
*/