var scrollbar;
    
    function scrollbarPressed (o, c, e) {
    	o.className += "-Pressed";
    };
    
    function scrollbarReleased (o, c, e) {
    	o.className = o.className.replace("-Pressed", "");
    };
    
    function scrollInit() {
    	var content = document.getElementById("ScrollArea-Content");
    	var scrollb = document.getElementById("ScrollArea-Scrollbar");
    
    	scrollbar = new Scrolling.Scrollbar (
    		scrollb,
    		new Scrolling.Scroller (content, 630, 325),
    		new Scrolling.ScrollTween()
    	);
    	
    	scrollbar.onMouseDown = scrollbarPressed;
    	scrollbar.onMouseUp   = scrollbarReleased;

     newHeight = document.getElementById("scrollTxt").offsetHeight;
     if (newHeight <= heigtScrollWin) {
       scrollbar.disable();
     } else  {
       scrollbar.enable();
     		scrollb.style.opacity = 1;
     		scrollb.style.MozOpacity = 1;
     		scrollb.style.filter = "alpha(opacity=100)";
     }
     //initScroll();
     scrollbar.tweenTo(0);
    };