// JavaScript Document
var layerHeight = 200; 
var iFrame = 1; 
var iFrequency = 50; 
var timer; 

if(document.getElementById("yscrolla").offsetHeight >= layerHeight){
document.getElementById("center1a_3").style.height = layerHeight;
}else{
document.getElementById("center1a_3").style.height = document.getElementById("yscrolla").offsetHeight;
document.getElementById("yscrollb").innerHTML = document.getElementById("yscrolla").innerHTML;
}
function move(){
if(document.getElementById("center1a_3").scrollTop >= document.getElementById("yscrolla").offsetHeight){
document.getElementById("center1a_3").scrollTop -= (document.getElementById("yscrolla").offsetHeight - iFrame);
}
else {
document.getElementById("center1a_3").scrollTop += iFrame;
}
}
timer = setInterval("move()",iFrequency);
document.getElementById("center1a_3").onmouseover=function() {clearInterval(timer);}
document.getElementById("center1a_3").onmouseout=function() {timer=setInterval("move()",iFrequency);}