function addScrollers() {
startScroll('message',eventText);
}

var speed=30; 
var dR=false; // reverse direction
var step = 1;



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<2-eH)x=sH;
 i.top = x+'px';
 } 
 
 function startScroll(sN,txt){ 
 var scr=document.getElementById(sN); 
 var sW = objWidth(scr)-6; 
 var sH = objHeight(scr); 
 scr.innerHTML = '<div id="'+sN+'in" style="position:absolute; left:3px; width:'+sW+';">'+txt+'<\/div>'; 
 var sTxt=document.getElementById(sN+'in'); 
 var eH=objHeight(sTxt); 
 sTxt.style.top=(dR? -eH : sH)+'px'; 
 sTxt.style.clip='rect(0,'+sW+'px,'+eH+'px,0)'; 
 setInterval(function() {scrF(sTxt.style,sH,eH);},1000/speed);
 }
 window.onload = addScrollers;