var timer_id;

// HORIZONTAL SCOLLER 
// HORIZONTAL SCOLLER 
// HORIZONTAL SCOLLER 
// to make vertical, switch the 1st scrollBy values to be (0,inc) and the 2nd to be (inc, 0)

function iframe_scroll(frm,inc,dir) {
  if (timer_id) clearTimeout(timer_id);
  if (window.frames[frm]) {
    if (dir == "h") window.frames[frm].scrollBy(inc, 0);
    else window.frames[frm].scrollBy(0, inc);
    timer_id = setTimeout("iframe_scroll('" + frm + "'," + inc + ",'" + dir + "')", 20);
  }
}

function stopScroll() { if (timer_id) clearTimeout(timer_id); }