// CollapseMenu Object
// a slick collapsable navigation menu object
// 19990606

// Copyright (C) 1999 Dan Steinman
// Distributed under the terms of the GNU Library General Public License
// Available at http://www.dansteinman.com/dynapi/

function CollapseMenu(x,y,width,numBlocks,name,bgColor) {
	this.name = (name!=null)? name : "CollapseMenu"+(CollapseMenu.count++)
	this.x = x
	this.y = y
	this.w = width
	this.numBlocks = numBlocks
	this.bgColor = bgColor
	this.openStyle = "slide"  // or 'glide' or 'move'
	this.contentIndent = 0
	this.inc = 5
	this.speed = 10
	this.active = false
	this.obj = this.name + "Object"
	eval(this.obj + "=this")
	this.build = CollapseMenuBuild
	this.activate = CollapseMenuActivate
	this.toggle = CollapseMenuToggle
	this.open = CollapseMenuOpen
	this.close = CollapseMenuClose
	this.finish = CollapseMenuFinish
	this.onToggle = new Function()
}

function CollapseMenuBuild() {
	this.css = css(this.name,this.x,this.y,this.w,null)
	for (var i=0;i<this.numBlocks;i++) {
		this.css += css(this.name+'Block'+i,0,0,this.w)
		this.css += css(this.name+'Block'+i+'Item',0,0,this.w,null,this.bgColor)
		this.css += css(this.name+'Block'+i+'Content',0,0,this.w,null,this.bgColor,'hidden',null,'margin-left:'+this.contentIndent+'px')
	}
	this.css += css(this.name+'Block'+this.numBlocks,0,0,this.w,null,this.bgColor)
	this.divStart = '<div id="'+this.name+'">'
	this.divEnd = ''
	this.divEnd += '<div id="'+this.name+'Block'+this.numBlocks+'">&nbsp; &nbsp;</div>'
	for (var i=0;i<this.numBlocks;i++) {
		this.divEnd += '</div>'
	}
	this.divEnd += '</div>'
}

function CollapseMenuActivate() {
	this.lyr = new DynLayer(this.name)
	this.blocks = new Array()
	this.itemTotal = 0
	this.contentTotal = 0
	if (is.ns5) {
		for (var i=0;i<this.numBlocks;i++) {
			this.blocks[i] = new Object()
			this.blocks[i].itemHeight = alturaItem[i]
			this.blocks[i].contentHeight = alturaContent[i]
			
			this.blocks[i].open = false
			this.blocks[i].lyr = new DynLayer(this.name+'Block'+i)
			this.blocks[i].itemlyr = new DynLayer(this.name+'Block'+i+'Item')
			this.itemTotal += this.blocks[i].itemHeight
			this.blocks[i].itemlyr.clipTo(0,this.w,this.blocks[i].itemHeight,0)
			
			this.blocks[i].contentlyr = new DynLayer(this.name+'Block'+i+'Content')
			this.contentTotal += this.blocks[i].contentHeight
			this.blocks[i].contentlyr.clipTo(0,this.w,this.blocks[i].contentHeight,0)
			this.blocks[i].contentlyr.moveTo(null,this.blocks[i].itemHeight)
			if (i!=0) this.blocks[i].lyr.moveTo(null,this.blocks[i-1].itemHeight)
			this.blocks[i].h = this.blocks[i].itemHeight + this.blocks[i].contentHeight
		}
	} else {
		for (var i=0;i<this.numBlocks;i++) {
			this.blocks[i] = new Object()
			this.blocks[i].open = false
			this.blocks[i].lyr = new DynLayer(this.name+'Block'+i)
			this.blocks[i].itemlyr = new DynLayer(this.name+'Block'+i+'Item')
			this.blocks[i].itemHeight = this.blocks[i].itemlyr.getContentHeight()
			this.itemTotal += this.blocks[i].itemHeight
			this.blocks[i].itemlyr.clipTo(0,this.w,this.blocks[i].itemHeight,0)
			
			this.blocks[i].contentlyr = new DynLayer(this.name+'Block'+i+'Content')
			this.blocks[i].contentHeight = this.blocks[i].contentlyr.getContentHeight()
			this.contentTotal += this.blocks[i].contentHeight
			this.blocks[i].contentlyr.clipTo(0,this.w,this.blocks[i].contentHeight,0)
			this.blocks[i].contentlyr.moveTo(null,this.blocks[i].itemHeight)
			if (i!=0) this.blocks[i].lyr.moveTo(null,this.blocks[i-1].itemHeight)
			this.blocks[i].h = this.blocks[i].itemHeight + this.blocks[i].contentHeight
		}
	}
	this.h = this.contentTotal + this.itemTotal
	for (var i=this.numBlocks-1;i>=0;i--) {
		this.blocks[i].lyr.clipInit()
		this.blocks[i].lyr.clipTo(0,this.w,this.h-this.blocks[i].lyr.y,0)
	}
	this.blocks[this.numBlocks] = new Object()
	this.blocks[this.numBlocks].lyr = new DynLayer(this.name+'Block'+this.numBlocks)
	this.blocks[this.numBlocks].lyr.clipTo(0,this.w,this.h-this.itemTotal,0)
	this.blocks[this.numBlocks].lyr.css.height = this.h-this.itemTotal
	this.blocks[this.numBlocks].lyr.moveTo(null,this.blocks[this.numBlocks-1].itemHeight)
	this.lyr.clipTo(0,this.w,this.h,0)
}

function CollapseMenuToggle(i) {
	if (this.active) return
	this.active = true
	if (!this.blocks[i].open) this.open(i)
	else this.close(i)
}
function CollapseMenuOpen(i) {
	if (!this.blocks[i].open) {
		var h = this.blocks[i].contentHeight + this.blocks[i].itemHeight
		this.blocks[i].open = true
		if (this.openStyle == 'slide') this.blocks[i+1].lyr.slideTo(null,h,this.inc,this.speed,this.obj+'.finish()')
		else if (this.openStyle == 'glide') this.blocks[i+1].lyr.glideTo('slow','slow',null,h,this.inc,this.speed,this.obj+'.finish()')
		else if (this.openStyle == 'move') {this.blocks[i+1].lyr.moveTo(null,h); this.finish();}
		capilla = this.blocks[i].contentlyr;
		lapse = 0;
		if((subMenu[i]!=null) && (this.blocks[i+2]!=null) && (this.bgColor==null)){
			lapse = subMenu[i].length;		
			if(is.ns5){
				lapse *= 500;
				lapse += 300;
			}else if (is.ns){
				lapse *= 150;
				lapse += 100;
			}else{
				lapse *= 100;
				lapse += 100;
			}
		}
		setTimeout('capilla.show()',lapse);
	}
}
function CollapseMenuClose(i) {
	if (this.blocks[i].open) {
		var h = this.blocks[i].itemHeight
		this.blocks[i].open = false
		if (this.openStyle == 'slide') this.blocks[i+1].lyr.slideTo(null,h,this.inc,this.speed,this.obj+'.finish()')
		else if (this.openStyle == 'glide') this.blocks[i+1].lyr.glideTo('slow','slow',null,h,this.inc,this.speed,this.obj+'.finish()')
		else if (this.openStyle == 'move') {this.blocks[i+1].lyr.moveTo(null,h); this.finish();}
		this.blocks[i].contentlyr.hide();
	}
}
function CollapseMenuFinish() {
	this.active = false
	this.onToggle()
}

// Funcion que abre una capa y cierra la que este abierta
var opcionActiva = null;
function abrirOpcion(i){
	if (opcionActiva == null){
		opcionActiva = i;
		collapse.open(i);
	} else {
		if(opcionActiva == i) {
			collapse.close(i);
			opcionActiva = null;
		} else {
			collapse.close(opcionActiva);
			opcionActiva = i;
			collapse.open(i);
		}
	}
}

CollapseMenu.count = 0