Bug 187178 Remove Total.* from expression build
The Total java script object is no longer supported by BIRT. It should be removed from Expression builder.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/ExpressionTreeSupport.java
{
					event.feedback = DND.FEEDBACK_SCROLL
							| DND.FEEDBACK_INSERT_BEFORE;
				}
				public void dragOperationChanged( DropTargetEvent event )
				{
					dragEnter( event );
				}
				public void drop( DropTargetEvent event )
				{
					if ( event.data instanceof String )
						insertText( (String) event.data );
				}
			};
			dropTarget.addDropListener( dropTargetAdapter );
		}
	}
	public void removeDropSupportToViewer( )
	{
		if ( dropTarget != null && !dropTarget.isDisposed( ) )
		{
			if ( dropTargetAdapter != null )
			{
				dropTarget.removeDropListener( dropTargetAdapter );
				dropTargetAdapter = null;
			}
			dropTarget.dispose( );
			dropTarget = null;
		}
	}