var webcams_thumbs_images=new Array();

function updateWebcam(obj,t) {
  var i=webcams_thumbs_images.length;
  webcams_thumbs_images[i]=obj;
  obj.onload=null;
  obj.src_orig=obj.src;
  obj.wait = false;
  window.setInterval("updateImg("+i+")",t*1000);
}

 function updateImg(i) {
  obj=webcams_thumbs_images[i];
  if (obj.wait) return;
  var time=new Date();
  var ts="t"+time.getFullYear()+time.getMonth()+time.getDate()+time.getHours()+time.getMinutes()+time.getSeconds();
  obj.src=obj.src_orig+"?"+ts;
}