/*****************************************************

* 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 = 250

ypSlideOutMenu.hideDelay = 1000

ypSlideOutMenu.minCPUResolution = 10

function ypSlideOutMenu(id, dir, left, top, width, 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; ')

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) {

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)

{

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) 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])

}

ypSlideOutMenu.prototype.onactivate = function() { }

ypSlideOutMenu.prototype.ondeactivate = function() { }