var direction = 1;
var befScrollLeft = -1;
function doScroll()
{
  var elem = document.getElementById('Panoramablick');
  //alert(elem);
  if (elem != null)
  {
    elem.scrollLeft = elem.scrollLeft + (1*direction);
    if (elem.scrollLeft == 0)
      direction = 1;
    else if (elem.scrollLeft == befScrollLeft)
      direction = -1;
    befScrollLeft = elem.scrollLeft;
  }
  window.setTimeout("doScroll()", 20);
}