x = 0;

function scorri_dx() {
  p1=setInterval('scorr_dx()',15);
}

function scorr_dx(){

  if (x < (top.iframe1.document.body.scrollLeft + 2)) x += 1;

  top.iframe1.window.scroll(x,0);

}

function scorri_sx() {
  p1=setInterval('scorr_sx()',15);
}

function scorr_sx(){

  if (x > 0) x -= 1;

  top.iframe1.window.scroll(x,0);

}

function stop() {
  clearInterval(p1);
}