function UpdateWebCam()
{
  Now = new Date();

  NewUrl = "images/webcam/1.jpg?date=" + Now.getTime();
  document.webcam1.src = NewUrl;

  NewUrl = "images/webcam/2.jpg?date=" + Now.getTime();
  document.webcam2.src = NewUrl;

  window.setTimeout("UpdateWebCam()", 60000);
}