// <!-- ©  Copyright   by   Hansjörg  Klaue - Schweiz-->

var backgroundOffset = 0; 
var bgObject = textbox; 
function scrollBG(maxSize) { 
backgroundOffset = backgroundOffset + 1; 
if (backgroundOffset > maxSize) backgroundOffset = 0; 
bgObject.style.backgroundPosition = "0 " + backgroundOffset; 
} 
var ScrollTimer = window.setInterval("scrollBG(307)", 64);