function
handleChange(topic)
{
    if(document.getElementById("dropdown") != null)
        document.getElementById(curTopic).style.color = "black";
    curTopic = topic;
    if(document.getElementById("dropdown") != null)
        document.getElementById(curTopic).style.color = "#C2762F";
    
    document.getElementById("scrolling").innerHTML = 
        document.getElementById(curTopic + "content").innerHTML;
        
    document.getElementById("scrolling").style.top = 24;
    
    if(document.getElementById("scrolling").offsetHeight + 24 >
        document.getElementById("content").offsetHeight)
        {
            document.getElementById("scrollers").style.visibility = "visible";
        }
        else
        {
            document.getElementById("scrollers").style.visibility = "hidden";
         }
}


// ----------------------------------------------

var toggle = [new Image(), new Image(), new Image(), new Image()];

    toggle[0].src = "images/btn_up.gif";
    toggle[1].src = "images/btn_up_1.gif";
    toggle[2].src = "images/btn_dn.gif";
    toggle[3].src = "images/btn_dn_1.gif";
    
    
 
    
var timer = null;
var keepscrolling = false;

function
handleScroll(dir, ref, evt)
{
	var e = evt ? evt : window.event;
	
	if(document.all)
	{
	    document.body.style.cursor = 'hand';   
	}
	keepscrolling = true;
	scroller(dir);
    
    e.cancelBubble=true;
    return false;
}

function
scroller(dir)
{
var v = dir;
var offset = 0;
var viewHt = document.getElementById("content").offsetHeight;
var docHt = document.getElementById("scrolling").offsetHeight + 8;


var txtlyr = document.getElementById("scrolling");

if(dir == "up")
{

document.images["btn_up"].src = toggle[1].src;

	with(txtlyr)
		{
			offset = offsetTop  + 15; //(document.all ? parseInt(style.top) : offsetTop)
			if(offset > 24) 
			    offset = 24;
			
			style.top = offset; 
		}
		
		
}
else
{

document.images["btn_dn"].src = toggle[3].src;


    with(txtlyr)
		{
			offset = offsetTop - 15;
			if(offset + docHt < viewHt) 
			    offset = viewHt - docHt;
			style.top = offset; 
		}
}


if(keepscrolling)
				timer= setTimeout( "scroller('" + dir + "')", 120);
}


function
cancelscroll()
{
if(document.all)
	{
	    document.body.style.cursor = 'auto';   
	}
    document.images["btn_up"].src = toggle[0].src;
    document.images["btn_dn"].src = toggle[2].src;
	keepscrolling = false;
	if(timer) clearTimeout(timer);
	
}