/**********************************************************************************   
FoldoutMenu 
*   Copyright (C) 2001 Thomas Brattli
*   This script was released at DHTMLCentral.com
*   Visit for more great scripts!
*   This may be used and changed freely as long as this msg is intact!
*   We will also appreciate any links you could give us.
*
*   Made by Thomas Brattli
*
*   Script date: 09/04/2001 (keep this date to check versions) 
*********************************************************************************/

function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion;
	this.agent=navigator.userAgent;
	this.dom=document.getElementById?1:0;
	this.opera5=(navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?1:0;
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie7=(this.ver.indexOf("MSIE 7")>-1 && this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6||this.ie7;
	this.mac=this.agent.indexOf("Mac")>-1;
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	//this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5);
	this.bw=(this.ie7||this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this;
}

var bw=lib_bwcheck()

/*** variables you can configure ***/

FoldNumber = 5;								//How many toplinks do you have?
var stayFolded = false;				//Stay open when you click a new toplink?
foldImg = 0;									//Do you want images (if not set to 0 and remove the images from the body)?
mainOffsetY = 0;							//Vertical space adjustment between the main items, in pixels.

// A unit of measure that will be added when setting the position of a layer.
//var px = bw.ns4 || window.opera ? "" : "px";
var px = bw.ns4 || bw.opera5 ? "" : "px";

//Opera 5 resize fix.

if (navigator.userAgent.indexOf('Opera') > -1 && document.getElementById) {
	scrX = innerWidth; scrY= innerHeight;
	document.onmousemove= function() {
		if(scrX < innerWidth-10 || scrY < innerHeight-10 || scrX > innerWidth+10 || scrY > innerHeight+10){
			scrX = innerWidth;
			scrY = innerHeight;

			initFoldout();
		}
	};
}

//object constructor...
function makeMenu(obj,nest) {
	nest = (!nest) ? "" : 'document.'+nest+'.';
	this.el = bw.ie4 ? document.all[obj] : bw.ns4 ? eval(nest+'document.'+obj) : document.getElementById(obj);	
	this.css = bw.ns4 ? this.el : this.el.style;
	this.ref = bw.ns4 ? this.el.document : document;		
	this.x = (bw.ns4||bw.opera5) ? this.css.left : this.el.offsetLeft;
	this.y = (bw.ns4||bw.opera5) ? this.css.top : this.el.offsetTop;
	if (bw.ie||bw.ns6||opera5) {
		this.h = this.el.offsetHeight;
	} else if (bw.ns4) {
		this.h = this.ref.height;
	} else {
		this.h = 0;
	}

	this.vis = b_vis;
	this.hideIt = b_hideIt;
	this.showIt = b_showIt;
	this.moveIt = b_moveIt;
	return this
}

//object methods...
function b_showIt(){this.css.visibility='visible'}
function b_hideIt(){this.css.visibility='hidden'}
function b_vis(){if(this.css.visibility=='hidden' || this.css.visibility=='HIDDEN' || this.css.visibility=='hide') return true;}
function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x+px; this.css.top=this.y+px}

/************************************************************************************
This is the function that changes the sub menus to folded or unfolded state.
************************************************************************************/
function menu(num){
	if(bw.bw){
		if (!stayFolded){
			for (var i=0; i<oSub.length; i++){
				if (i!=num){
					oSub[i].hideIt()
					if (foldImg)oTop[i].ref["imgA"+i].src = unImg.src
				}
			}
			for(var i=1; i<oTop.length; i++){
				oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].h)
			}
		}
		if (oSub[num].vis()){
			oSub[num].showIt()
			if (foldImg)oTop[num].ref["imgA"+num].src = exImg.src
		}else{
			oSub[num].hideIt()
			if(foldImg)oTop[num].ref["imgA"+num].src = unImg.src
		}
		for(var i=1; i<oTop.length; i++){ 
			if (!oSub[i-1].vis()) oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].h+oSub[i-1].h+mainOffsetY) 
			else oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].h+mainOffsetY)
		}
	}
}

/*********************************************************************
The init function... there should be no need to change anything here.
*********************************************************************/
function initFoldout(){
	//Fixing the browsercheck for opera... this can be removed if the browsercheck has been updated!!
	bw.opera5 = (navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?true:false
	if (bw.opera5) bw.ns6 = 0

	oTop = new Array()
	oSub = new Array()
	//Making the objects and hiding the subs...
	for (var i=0; i<FoldNumber; i++){
		oTop[i] = new makeMenu('divTop'+i,'divCont')
		oSub[i] = new makeMenu('divSub'+i,'divCont.document.divTop'+i)
		oSub[i].hideIt()
	}
	
	//Positioning the top objects...
	oTop[0].moveIt(0,0)
	for (var i = 1; i < oTop.length; i++){
		oTop[i].moveIt(0, oTop[i-1].y+oTop[i-1].h+mainOffsetY)
	}
	
	//Making the containing menu object and showing it...
	oCont = new makeMenu('divCont')
	oCont.showIt()
}

// If the browser is ok, the script is started onload...
if (bw.bw) onload = initFoldout;