anchor.diff:  			function(item) {
   				new Draggable(item,{revert: true});
   				item.currentDurationIndex = item.parentNode.durationIndex;
  -				item.activity = item.parentNode.parentNode.getElementsByClassName('activity')[0].innerHTML.trim();
  +				item.activity = item.parentNode.parentNode.getElementsByClassName('activity')[0].innerHTML.strip();
   			}
           );
   
  
positive.code:     document.getElementsByClassName('marker').each(
          function(item) {new Draggable(item,{revert: true});
              item.currentDurationIndex = item.parentNode.durationIndex;
              item.activity = item.parentNode.parentNode.getElementsByClassName('activity')[0].innerHTML.trim();
          }
      );
  
  
negative.code: Event.observe(window, "load", showEmptyMessage)
  Event.observe(window, "load", registerDraggablesAndDroppables)
  
  	var PERIOD_DURATION = 7;
  
  function moveEvent(draggable,dropZone) {
  