// Extension developed by David G. Miles 
// Original Scrollable Area code developed by Thomas Brattli 
function verifyCompatibleBrowser(){ 
   this.ver=navigator.appVersion 
   this.dom=document.getElementById?1:0 
   this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0; 
   this.ie4=(document.all && !this.dom)?1:0; 
   this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0; 

   this.ns4=(document.layers && !this.dom)?1:0; 
   this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5) 
   return this 
} 
bw=new verifyCompatibleBrowser() 


var speed=50 

var loop, timer 

function ConstructObject(obj,nest){ 
   nest=(!nest) ? '':'document.'+nest+'.' 
   this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0; 
   this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0; 
   this.scrollHeight=bw.ns4?this.css.document.height:this.el.offsetHeight 
   this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight 
   this.up=MoveAreaUp;this.down=MoveAreaDown; 
   this.MoveArea=MoveArea; this.x; this.y; 
   this.obj = obj + "Object" 
   eval(this.obj + "=this") 
   return this 
} 
function MoveArea(x,y){ 
   this.x=x;this.y=y 
   this.css.left=this.x 
   this.css.top=this.y 
} 

function MoveAreaDown(move){ 
if(this.y>-this.scrollHeight+objContainer.clipHeight){ 
   this.MoveArea(0,this.y-move) 
   if(loop) setTimeout(this.obj+".down("+move+")",speed) 
} 
} 
function MoveAreaUp(move){ 
if(this.y<0){ 
   this.MoveArea(0,this.y-move) 
   if(loop) setTimeout(this.obj+".up("+move+")",speed) 
} 
} 

function PerformScroll(speed){ 
if(initialised){ 
 loop=true; 
 if(speed>0) objScroller.down(speed) 
 else objScroller.up(speed) 
} 
} 

function CeaseScroll(){ 
   loop=false 
   if(timer) clearTimeout(timer) 
} 
var initialised; 
function InitialiseScrollableArea(){ 
   objContainer=new ConstructObject('divContainer') 
   objScroller=new ConstructObject('divContent','divContainer') 
   objScroller.MoveArea(0,0) 
   objContainer.css.visibility='visible' 
   initialised=true; 
} 
// end absolutely positioned scrollable area object scripts