/**********************************************************************************   
FoldoutMenu 
*   Copyright (C) 2001 <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a>
*   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 <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a> 
*********************************************************************************/

function lib_bwcheck(){ //Browsercheck (needed)
   this.ver=navigator.appVersion
   this.agent=navigator.userAgent
   this.dom=document.getElementById?1:0
   this.opera5=this.agent.indexOf("Opera 5")>-1
   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.ie6=(this.ver.indexOf("MSIE 7")>-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.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.ie7 || this.IE8 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
   return this
}
var bw=new lib_bwcheck()

/*** variables you can configure ***/
FoldNumber = 13           //How many toplinks do you have?
var stayFolded = false    //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;