anchor.diff:  
   function start()
   {
  +	saveButton.hide();
  +	cancelButton.hide();
  +
   	if ((typeof window === 'undefined') || (typeof navigator === 'undefined')) log('Cette page requiert un navigateur Web avec les objets window.* et navigator.* !');
   	else if (!(video && canvas)) log('Erreur de contexte HTML !');
   	else
  
positive.code: 	}
  }
  
  start();
  //]]></script>
negative.code: </div>
  
  
  <script>
  var video = document.getElementById('video');
  var canvas = document.getElementById('canvas');
  var videoStream = null;
  var preLog = $('#preLog');
  var stopButton = document.getElementById('buttonStop');
  var snapButton = document.getElementById('buttonSnap');
  var startButton = document.getElementById('buttonStart');
  var saveButton = $('#buttonSave');
  var cancelButton = $('#buttonCancel');
  
  function buttonState(b, s) {
  	if (b) b.disabled = s;
  