/**********************************************************************************
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.ie7=(this.ver.indexOf("MSIE 7")>-1 && this.dom && !this.opera5)?1:0;
	this.ie8=(this.ver.indexOf("MSIE 8")>-1 && this.dom && !this.opera5)?1:0;
	this.ie9=(this.ver.indexOf("MSIE 9")>-1 && this.dom && !this.opera5)?1:0;
        this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
        this.ie=this.ie4||this.ie5||this.ie6||this.ie7||this.ie8||this.ie9
        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.ie7 || this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
        return this
}
var bw=lib_bwcheck()

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

FoldNumber = 23                                        //How many toplinks do you have?
var stayFolded = true                        //Stay open when you click a new toplink?
foldImg = 1                                                //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.

//This is the default image.
//Remember to change the actual images in the page as well, but remember to keep the name of the image.
var unImg=new Image();
unImg.src='foldoutmenu_arrow.gif'

var exImg=new Image();                                        //Making an image variable...
exImg.src='foldoutmenu_arrow_open.gif'        //...this is the source of the image that it changes to when the menu expands.

// NOTE: if you change the position of divCont from absolute to relative, you can put the foldoutmenu in a table.
// HOWEVER it will no longer work in netscape 4. If you wish to support netscape 4, you have to use absolute positioning.

/*** There should be no need to change anything beyond this. ***/

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

if(navigator.userAgent.indexOf('Opera')>-1 && document.getElementById){ //Opera 5 resize fix.
        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;
        this.h= (bw.ie||bw.ns6)?this.el.offsetHeight:bw.ns4?this.ref.height:bw.opera5?this.css.pixelHeight: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;