Bug 201042 [Accessibility]Chart scritp should not add by auto when click the down in keyboard[17]
Description: Chart scritp should not add by auto when click the down in keyboard[0704] Step: 1. New a chart and switch to script view. 2. Let the point on the script function selection. 3. Click the down on keyboard. Actual result: A function will add by auto. Expected result: Customer can not select the function under the second function by keyboard, and it should not be added by auto.
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/internal/ui/editors/script/JSEditor.java
markDirty( );
			}
		}
	};
	/**
	 * JSEditor - constructor
	 */
	public JSEditor( IEditorPart parent )
	{
		super( );
		this.editingDomainEditor = parent;
		setSite( parent.getEditorSite( ) );
	}
	/**
	 * Creates script editor, dosen't include controller
	 * 
	 * @return a script editor
	 */
	protected IScriptEditor createScriptEditor( )
	{
		return new ScriptEditor( );
	}
	/**
	 * @see AbstractTextEditor#doSave( IProgressMonitor )
	 */
	public void doSave( IProgressMonitor monitor )
	{
		saveModel( );
	}
	public boolean isDirty( )