// begin absolutely positioned scrollable area object scripts 
// 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=120 
 
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 + "px";
} 
 
function MoveAreaDown(move){ 
	/*alert("y: " + this.y + " s height: -" + this.scrollHeight + " clip h: " + objContainer.clipHeight);*/

	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