var ourInterval;
var origColor = "#F3F9F1";
var overColor = "#36FF00";
var scrollSpeed = 50;
var scrollHeight = 5;

function scrollStart(direction, divID){
//CHANGE THE BACKGROUND COLOR OF THE TD THE MOUSE IS OVER
//document.getElementById(elementID).style.backgroundColor = overColor;
// REPEATED CALL EITHER scrollUp OR scrollDown
ourInterval = setInterval("scroll"+direction+"('"+divID+"')", scrollSpeed);
}
function scrollEnd(){
// OUR MOUSE IS OUT, SO RETURN TD TO ORIGINAL COLOR
//document.getElementById(which).style.backgroundColor = origColor;
// STOP CALLING THE SCROLL FUNCTION
clearInterval(ourInterval);
}

function scrollUp(which){
// SET THE SCROLL TOP
document.getElementById(which).scrollTop = document.getElementById(which).scrollTop - scrollHeight;
}
function scrollDown(which){
// SET THE SCROLL TOP
document.getElementById(which).scrollTop = document.getElementById(which).scrollTop + scrollHeight;
}