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

 * 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 = 0

ypSlideOutMenu.hideDelay = 500

ypSlideOutMenu.minCPUResolution = 10



// constructor

function ypSlideOutMenu(id, dir, left, top, width, height, visible)

{

	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		 = visible

		this.over		 = false

		this.startTime	 = 0

		this.visible     = visible

		this.visibility  = this.visible ? "visible" : "hidden"

	

		// 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 += 'position:absolute;';

				strCSS += 'left:' + left + '%;';

				strCSS += 'top:' + top + 'px;';

				//strCSS += 'left:' + left + '%;';

				//strCSS += 'top:' + top + '%;';

				strCSS += 'overflow:hidden;';

				strCSS += 'z-index:10000;';

				strCSS += 'visibility:' + this.visibility + ';';

				strCSS += 'width:' + width + '%;';

				//strCSS += 'width:' + width + '%;';

				strCSS += 'height:' + height + 'px;';

				//strCSS += 'clip:rect(0 ' + width + ' ' + height + ' 0);';

				strCSS += '}';

				strCSS += '#' + this.id + 'Content {padding: 13px 0px 0px 0px;}';

                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)

	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 



		// set event handlers.

		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 + "')")



		//set initial state

		if (!this.visible) this.endSlide()



	}

}



ypSlideOutMenu.showMenu = function(id)

{

	MM_swapImgRestore();



	var reg = ypSlideOutMenu.Registry

	var obj = ypSlideOutMenu.Registry[id]

	

	if (obj.container) {

		obj.over = true



		// close other menus.

		for (menu in reg) if (id != menu) ypSlideOutMenu.hide(menu, true)

		

		// if this menu is scheduled to close, cancel it.

		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }



		// if this menu is closed, open it.

		if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)

	} 



	document.ypSlideOutMenu_forceHide = false;



//	swamp nav1 images

	var name = 'nav1' + id.charAt(4);

	var imgObj = document.getElementById(name);

	var imgSrc = imgObj.src;



	var swapFrom = imgSrc.charAt(imgSrc.length - 5) + ".gif";

	var swapTo = "1.gif";



	imgSrc = imgSrc.replace(swapFrom,swapTo);

	if (name) MM_swapImage(name, '', imgSrc, 1);



}

//

ypSlideOutMenu.showhelpImage = function(id)

{

	var name = 'nav16';

	var imgObj = document.getElementById(name);

	var imgSrc = imgObj.src;



	if (id == 'out')

	{

		var swapFrom = "1.gif";

		var swapTo = "0.gif";

	}

	else if (id == 'over')

	{

		var swapFrom = "0.gif";

		var swapTo = "1.gif";

	}

	imgSrc = imgSrc.replace(swapFrom,swapTo);

	if (name) MM_swapImage(name, '', imgSrc, 1);



}



ypSlideOutMenu.hideMenu = function(id)

{

	// this variable tells MM_swapImage to reset nav1 and nav2 when another image uses MM_swapImage

	document.ypSlideOutMenu_forceHide = true;



	// schedules the menu to close after <hideDelay> ms, which

	// gives the user time to cancel the action if they accidentally moused out

	var obj = ypSlideOutMenu.Registry[id]

	if (obj.container && !obj.visible) {

		if (obj.hideTimer) window.clearTimeout(obj.hideTimer)

		obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);

	}

}





ypSlideOutMenu.hide = function(id, esc)

{

	var reg = ypSlideOutMenu.Registry

	var obj = ypSlideOutMenu.Registry[id]

	obj.over = false



	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)

	

	// flag that this scheduled event has occured.

	obj.hideTimer = 0



	

	// if this menu is open, close it.

	// and open any menu that is visible by default.

	if (obj.open && !obj.aniTimer) {

		MM_swapImgRestore_menu();



		obj.startSlide(false);

		// open default menu if there is one.

		if (!esc) {

			for (menu in reg) if (reg[menu].visible) ypSlideOutMenu.showMenu(menu);

		}

	}

}



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])

}



// events

ypSlideOutMenu.prototype.onactivate		= function() { }

ypSlideOutMenu.prototype.ondeactivate	= function() { }



//init

//must be in document for Mac IE 5.0

//new ypSlideOutMenu("subnav1", "down", 500, 12, 170, 97);

//new ypSlideOutMenu("subnav2", "down", 500, 12, 170, 97);