var Timer;

function ScrollLeft()
{
  Timer = setInterval("document.getElementById('scrolldiv').scrollLeft -= 2", 15);
}
function ScrollRight()
{
  Timer = setInterval("document.getElementById('scrolldiv').scrollLeft += 2", 15);
}
function ScrollUp()
{
  Timer = setInterval("document.getElementById('leftColumn').scrollTop -= 2", 15);
}
function ScrollDown()
{
  Timer = setInterval("document.getElementById('leftColumn').scrollTop += 2", 15);
}