anchor.diff:                     
       }
      
  +    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');
  
positive.code:        
         if(confirm("Do you really want to delete this treatment period ?"))
         { 
       //    deleteEpoch( epoch_order );
      
       //    deleteEpochFromBackEnd( epoch_index )
          
           $('th-table1-'+epoch_index).remove();
           $('th-col-epoch-'+epoch_index).remove();
  
negative.code:            all_cells_of_this_epoch_column[i].remove();
           }
           
           deleteEpoch( epoch_index );
          
         }
         else
           return false;
           
          
      }
      
      function selectAll(event)
      {
  