<!--
var timerID, panoFunction = 0

function ptvActionPoll(){
  if (document.ptviewer.getAutoPan() && panoFunction != 0)
    document.ptviewer.stopAutoPan();
  switch(panoFunction){
    case 1:  //pan left
      document.ptviewer.panLeft();
      break;

    case 2:  //tilt up
      document.ptviewer.panUp();
      break;

    case 3:  //tilt down
      document.ptviewer.panDown();
      break;

    case 4:  //pan right
      document.ptviewer.panRight();
      break;

    case 5:  //zoom out
      document.ptviewer.zoomOut();
      break;

    case 6:  //zoom in
      document.ptviewer.zoomIn();
      break;
  }
}

function ptvStart(refreshInterval) {
   timerID = window.setInterval("ptvActionPoll()", refreshInterval);
}

function ptvNav(actionCode) {
   panoFunction = actionCode;
}
//-->