slideOutMenu.Registry = [];
slideOutMenu.aniLen = 250;
slideOutMenu.hideDelay = 100;
slideOutMenu.minCPUResolution = 10;
slideOutMenu.styleMod = '';

function slideOutMenu(id, dir, left, top, width, height, parentid, degrade, debug)
{
	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.degrade = degrade;
		this.debug = debug;
		this.sliding = false;
		this.id = id;
		this.parentid = parentid;
		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 = "slideOutMenu_" + id;
		
		eval(this.gRef + "=this");
		
		slideOutMenu.Registry[id] = this;
		
		this.initleft = left;
		this.inittop = top;
		this.initwidth = width;
		this.initheight = height;
		this.showcount = 0;

		slideOutMenu.styleMod += '#' + this.id + 'Container { visibility:hidden; ';
		slideOutMenu.styleMod += 'left:' + left + 'px; ';
		slideOutMenu.styleMod += 'z-index:50; ';
		slideOutMenu.styleMod += 'top:' + top + 'px; ';
		slideOutMenu.styleMod += 'overflow:hidden; }';
		slideOutMenu.styleMod += '#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; ';
		slideOutMenu.styleMod += 'height:' + height + 'px; ';
		slideOutMenu.styleMod += 'width:' + width + 'px; ';
		slideOutMenu.styleMod += 'z-index:50; ';
		slideOutMenu.styleMod += 'clip:rect(0 ' + width + ' ' + height + ' 0); ';
		slideOutMenu.styleMod += '}  ';
		
		this.load()
	}
}

slideOutMenu.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()", 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) / slideOutMenu.aniLen / slideOutMenu.aniLen;
		
		if (this.ns4)
		{
			this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		}
		
		this.menu.onmouseover = new Function("slideOutMenu.showMenu('" + this.id + "')");
		this.menu.onmouseout = new Function("slideOutMenu.hideMenu('" + this.id + "')");
		this.endSlide();
	}
}

var notSafari = true;

if (navigator.userAgent.toLowerCase().indexOf("safari") > -1)
{
	notSafari = false;
}

slideOutMenu.showMenu = function(id, e)
{
	if (notSafari)
	{
		var reg = slideOutMenu.Registry;
		var obj = slideOutMenu.Registry[id];
		
		if (obj.container)
		{
			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);
		}
	}
}

slideOutMenu.hideMenu = function(id, e)
{
	if (notSafari)
	{
		var obj = slideOutMenu.Registry[id];
		
		if (obj.container)
		{
			if (obj.hideTimer)
			{
				window.clearTimeout(obj.hideTimer);
			}
			
			obj.showcount--;
			obj.hideTimer = window.setTimeout("slideOutMenu.hide('" + id + "')", slideOutMenu.hideDelay);
		}
		
		if (obj.ns4)
		{
			obj.menu.routeEvent(Event.MOUSEOUT);
		}
	}
}

slideOutMenu.hide = function(id)
{
	var obj = slideOutMenu.Registry[id];
	var reg = slideOutMenu.Registry;
	
	obj.over = false;
	
	if (obj.hideTimer)
	{
		window.clearTimeout(obj.hideTimer);
	}
	
	obj.hideTimer = 0;
	
	var close = true;
	
	for (menu in reg)
	{
		var pid = slideOutMenu.Registry[menu].parentid;
		
		if (pid == id)
		{
			if (slideOutMenu.Registry[menu].open)
			{
				close = false;
			}
			
			if (!slideOutMenu.Registry[menu].open && slideOutMenu.Registry[menu].sliding)
			{
				close = false;
			}
		}
	}
	
	if (obj.open && !obj.aniTimer && close && !obj.showcount)
	{
		obj.startSlide(false);
	}
}

slideOutMenu.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()", slideOutMenu.minCPUResolution);
}

slideOutMenu.prototype.slide = function()
{
	var elapsed = (new Date()).getTime() - this.startTime;
	
	if (elapsed > slideOutMenu.aniLen)
	{
		this.endSlide();
	}
	else
	{
		var d = Math.round(Math.pow(slideOutMenu.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);
	}
}

slideOutMenu.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 = slideOutMenu.Registry;
		
		for (menu in reg)
		{
			var pid = slideOutMenu.Registry[menu].parentid;
			
			if (pid == this.id)
			{
				overchild = slideOutMenu.Registry[menu].over ? true : overchild;
			}
		}
		
		if (!overchild && this.parentid && !slideOutMenu.Registry[this.parentid].over)
		{
			slideOutMenu.hide(this.parentid);
		}
	}
}

slideOutMenu.prototype.setVisibility = function(bShow)
{ 
	var s = this.ns4 ? this.container : this.container.style;
	
	s.visibility = bShow ? "visible" : "hidden";
}

slideOutMenu.prototype.moveTo = function(p)
{ 
	this.style[this.orientation == "h" ? "left" : "top"] = p;
}

slideOutMenu.prototype.getPos = function(c)
{
	return parseInt(this.style[c]);
}
