ypSlideOutMenu.Registry = []
ypSlideOutMenu.aniLen = 250
ypSlideOutMenu.hideDelay = 100
ypSlideOutMenu.minCPUResolution = 10

// 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

if (this.ie || this.ns4 || this.dom) {
this.sliding = false;
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.parentid = parentid

// global reference to this object
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 {'
strCSS += 'left:' + left + 'px; '
strCSS += 'top:' + top + 'px; '
strCSS += 'overflow:hidden; z-index:100;FILTER: alpha(opacity=90) }'
strCSS += '#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; '
strCSS += 'width:' + width + 'px; '
strCSS += 'height:' + height + 'px; '
strCSS += 'clip:rect(0 ' + width + ' ' + height + ' 0); '
strCSS += '}'
                strCSS += '</style>';

                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)
if (!obj1 || !obj2) {
window.setTimeout(this.gRef + ".load()", 0);
} else {
this.container = obj1
this.menu = obj2
this.style = this.ns4 ? this.menu : this.menu.style
// SEE NOTE ABOVE.  The following function call for the 31 menus bug.
//this.setStyle()
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, e)
{
button = id.replace('menu', 'b');
//document.images[button].src="buttons/"+button+"_o.gif";
var reg = ypSlideOutMenu.Registry
var obj = ypSlideOutMenu.Registry[id]
if (obj.container) {
//if (obj.ie) alert('showing: ' + id);
obj.over = true
if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
obj.showcount++;
if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
}
if (obj.ns4) obj.menu.routeEvent(Event.MOUSEOVER);
}
var e=0;
ypSlideOutMenu.hideMenu = function(id, e)
{
button = id.replace('menu', 'b');
//if (e!=1){document.images[button].src="buttons/"+button+".gif";}
var obj = ypSlideOutMenu.Registry[id]
if (obj.container) {
//if (obj.ie) alert('hiding: ' + id);
if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
obj.showcount--;
obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
}
if (obj.ns4) obj.menu.routeEvent(Event.MOUSEOUT);
}

/*
ypSlideOutMenu.prototype.isOverMenu = function(evnt) {
if (evnt) {
return ((this.initleft < evnt.pageX && evnt.pageX < (this.initleft + this.initwidth)) && (this.inittop < evnt.pageY && evnt.pageY < (this.inittop + this.initheight)))?true:false;
} else {
return true;
}
}
*/

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


ypSlideOutMenu.prototype.startSlide = function(open) {
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 (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.hideMenu(this.parentid);
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";
s.display = bShow ? "block" : "none"
}

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

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

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