//	default height of the visible area
var lhi = 290;
	
//	If you want it to move faster you can set this lower, it's the timeout:
var speed = 30;

//	Sets variables to keep track of what's happening
var loop, timer;

function jumpToId(id) {
	var el = document.getElementById(id);
	
	oScroll.moveIt(0, el.offsetTop * -1);
}

//	Object constructor
function makeObj(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;
//	if ((this.scrollHeight > 0) && (this.scrollHeight < lhi)) {
	if (this.scrollHeight > lhi) {
   		set_image('scrollup', "/images/up_grey.gif");
    	set_image('scrollbar', "/images/scrollbar.gif");
    	set_image('scrolldown', "/images/down_grey.gif");
  	}

	this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight;
	this.up=goUp;this.down=goDown;
	this.moveIt=moveIt; this.x=0; this.y=0;
    this.obj = obj + "Object";
    eval(this.obj + "=this");
    return this;

}

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

function moveIt(x,y){
	this.x = x;
	this.y = y;
	this.css.left = this.x+px;
	this.css.top = this.y+px;
}

//	Makes the object go up
function goDown(move){
	if (this.y>-this.scrollHeight+oCont.clipHeight){
		this.moveIt(0,this.y-move);
		if (loop) setTimeout(this.obj+".down("+move+")",speed);
	}
}

//	Makes the object go down
function goUp(move){
	if (this.y<0){
		this.moveIt(0,this.y-move);
		if (loop) setTimeout(this.obj+".up("+move+")",speed);
	}
}

//	Calls the scrolling functions. Also checks whether the page is loaded or not.
function scroll(speed){
	if (scrolltextLoaded){
		loop = true;
		if (speed>0) oScroll.down(speed);
		else oScroll.up(speed);
	}
}

//	Stops the scrolling (called on mouseout)
function noScroll(){
	loop = false;
	if (timer) clearTimeout(timer);
}

//	Makes the object
var scrolltextLoaded = false
function scrolltextInit(){
	oCont = new makeObj('divScrollTextCont');
	oScroll = new makeObj('divText','divScrollTextCont');
	oScroll.moveIt(0,0);
	oCont.css.visibility = "visible";
	scrolltextLoaded = true;
}
//	Call the init on page load if the browser is ok...
//	if (bw.bw) onload = scrolltextInit