anchor.diff:      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();
  +            item.activity = item.parentNode.parentNode.getElementsByClassName('activity')[0].innerHTML.strip();
           }
       );
   
  
positive.code: 			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) {
  