gl.marginWidth= 0;
	private void createKeyPrefixField(Composite parent){		Composite composite= new Composite(parent, SWT.NONE);		composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));		GridLayout gl= new GridLayout();		gl.numColumns= 2;		composite.setLayout(gl);				Label l= new Label(composite, SWT.NONE);		l.setText(NLSUIMessages.getString("wizardPage.common_prefix")); //$NON-NLS-1$		l.setLayoutData(new GridData());				fPrefixField= new Text(composite, SWT.SINGLE | SWT.BORDER);		fPrefixField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));		fPrefixField.setText(guessPrefix());		fPrefixField.selectAll();	}