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
setValidateIcon( null, null );
			}
		}
		finally
		{
			setTextListenerEnable( true );
		}
	}
	/**
	 * getEditorText() - gets the editor content.
	 * 
	 */
	private String getEditorText( )
	{
		return scriptEditor.getScript( );
	}
	/**
	 * saveEditorContentsDE - saves the current editor contents to ROM using DE
	 * API
	 * 
	 * @param desHdl
	 * @return true if updated else false.
	 */
	private boolean saveEditorContentsDE( DesignElementHandle desHdl )
	{
		if ( desHdl != null && getEditorText( ) != null )
		{
			try
			{
				if ( cmbItemLastSelected != null )