// original code came from
// http://www.youngpup.net/?request=/components/ypSlideOutMenus.xml

ypSlideOutMenu.Registry = []
ypSlideOutMenu.aniLen = 250
ypSlideOutMenu.hideDelay = 500
ypSlideOutMenu.showDelay = 300
ypSlideOutMenu.minCPUResolution = 10
function ypSlideOutMenu(id, dir, left, top, width, height)
{
this.left = left
this.top = top
this.width = width
this.height = height
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.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; z-index:5; ')
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() {
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()", 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
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)
{
	var reg = ypSlideOutMenu.Registry
	var obj = ypSlideOutMenu.Registry[id]
	if (obj.container)
	{
		for (menu in reg)
			if (id != menu)
			{
				ypSlideOutMenu.hide(menu);
				if (reg[menu].showTimer) window.clearTimeout(reg[menu].showTimer)
			}
		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
		if (obj.showTimer) window.clearTimeout(obj.showTimer)
		obj.showTimer = window.setTimeout("ypSlideOutMenu.show('" + id + "')", ypSlideOutMenu.showDelay);
	}
}

ypSlideOutMenu.show = function(id)
{
	var obj = ypSlideOutMenu.Registry[id]
	obj.over = true
	if (obj.showTimer) window.clearTimeout(obj.showTimer)
	obj.showTimer = 0
	if (!obj.open)
	    hide_selects(obj.left, obj.top, obj.width, obj.height);

	if (!obj.open && !obj.aniTimer)
	    obj.startSlide(true)
}

ypSlideOutMenu.hideMenu = function(id)
{
	var reg = ypSlideOutMenu.Registry
	var obj = ypSlideOutMenu.Registry[id]
	if (obj.container)
	{
		if (obj.showTimer) { reg[id].showTimer = window.clearTimeout(reg[id].showTimer) }
		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)
	    show_selects(obj.left, obj.top, obj.width, obj.height);

	if (obj.open && !obj.aniTimer)
	    obj.startSlide(false)
}
ypSlideOutMenu.prototype.startSlide = function(open) {
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"] = p
}
ypSlideOutMenu.prototype.getPos = function(c) {
return parseInt(this.style[c])
}

function hide_selects(x, y, width, height)
{
    hide_elements("select", x, x+width, y, y+height)
}

function show_selects(x, y, width, height)
{
    show_elements("select", x, x+width, y, y+height)
}

function hide_elements(tagName, left, right, top, bottom)
{
	windowed_element_visibility(tagName, -1, left, right, top, bottom)
}

function show_elements(tagName, left, right, top, bottom)
{
	windowed_element_visibility(tagName, +1, left, right, top, bottom)
}

function windowed_element_visibility(tagName, change, left, right, top, bottom)
{
    if (!document.all) return

	var els = document.all.tags(tagName)
	var i
	for (i=0; i < els.length; i++)
	{
		var el = els.item(i)
		if (elements_overlap(el, left, right, top, bottom))
		{
			if (el.visLevel)
				el.visLevel += change
			else
				el.visLevel = change
			if (el.visLevel == -1)
			{
				el.style.visibility = "hidden"
			}
			else if (el.visLevel == 0)
				el.style.visibility = "visible"
		}
	}
}

function elements_overlap(el, left, right, top, bottom)
{
	var x = 0
	var y = 0
	var width = el.offsetWidth
	var height = el.offsetHeight
	while (el)
	{
		x += el.offsetLeft
		y += el.offsetTop
		el = el.offsetParent
	}
	return ((x < right) && (x + width > left) && (y < bottom) && (y + height > top))
}