function object_edit(id_objet) {
  document.forms['criteres']['edit:int'].value=id_objet;
  document.forms['criteres'].submit();
}

function init(e) {
  var popups=document.getElementsByClassName('popup');
  for (i=0; i < popups.length; i++) {
    new Draggable(popups[i]);
  }
}

Event.observe(window, 'load', init);