function addScrollers() {
    // code each scroller as follows:
    // startScroll('id of scroller div','content of scroller');
    startScroll('dvScroller',document.getElementById('dvScroller').innerHTML);
}

var sTxt;
var sH, eH;
var iTop;


var speed=6; // scroll speed (bigger = faster)
var dR=false; // reverse direction

// Vertical Scroller Javascript
// copyright 24th September 2005, by Stephen Chapman
// permission to use this Javascript on your web page is granted
// provided that all of the code below (as well as these
// comments) is used without any alteration
var step = 2; 
var iTimer;

function stopScroller() {
    clearInterval(iTimer);
}

function startScroller() {
    if(typeof(sTxt) != "undefined") {
        iTimer = setInterval(function() {scrF(sTxt.style,sH,eH);},1000/speed);
    }
}

function objWidth(obj) {
    if(obj.offsetWidth) 
        return obj.offsetWidth; 
    
    if (obj.clip) 
        return obj.clip.width; return 0;
} 

function objHeight(obj) {
    if(obj.offsetHeight) 
        return obj.offsetHeight; 
        
    if (obj.clip) 
        return obj.clip.height; 
        
    return 0;
} 



function scrF(i,sH,eH){
    var x=parseInt(i.top)+(dR? step: -step); 

    if(dR && x>sH)
        x=-eH;
    else if(x<200-eH)
        x=0;

    i.top = x+'px';
} 


function startScroll(sN,txt){
    var scr=document.getElementById(sN); 
    var sW = objWidth(scr)-6; 
    sH = objHeight(scr); 
    scr.innerHTML = '<div id="'+sN+'in" style="position:absolute; left:3px; width:'+sW+';">'+txt+'<\/div>'; 
    sTxt=document.getElementById(sN+'in'); 
    eH=objHeight(sTxt); 
    
    sTxt.style.top=(dR? -eH : sH)+'px'; 
    sTxt.style.clip='rect(0,'+sW+'px,'+eH+'px,0)'; 
    sTxt.style.top = 0;
    iTimer = setInterval(function() {scrF(sTxt.style,sH,eH);},1000/speed);
}