anchor.diff:             all_cells_of_this_epoch_column[i].remove();
            }
            
  -         
  +         deleteEpoch( epoch_index );
  +        
          }
          else
            return false;
            
           
       }
  -    
  -    function deleteEpochFromBackEnd( epoch_index )
  -    {
  -       createStudy.deleteEpoch( epoch_index , function(responseStr)
  -	   	{
  -             alert('deleted from backend : ' + responseStr);	   	
  -	   	});
  -    }
  -    
       
       function selectAll(event)
       {
  
positive.code:   		<!--  start of body -->
    		
    	  <span id="SolicitedAETableArea">	
    		<study:solicitedAETable />
        </span>
  	  		<!--  end of body  -->
    		<tags:tabControls tab="${tab}" flow="${flow}" />
  
negative.code:                    
      }
     
      function deleteEpoch( epoch_index ){
          
         	 
             <tags:tabMethod  method="deleteEpoch" 
                           viewName="study/ajax/generateSolicitedAETable" 
                           divElement="'SolicitedAETableArea'" 
                           formName="'command'"
                           onComplete="initializeAllEvents"/>
                     
      }
     
     function registerSelectAllCheckBoxes()
      {
        var header_of_all_epochs = $$('.epoch');
  