setEqualButtonSizes();
	public void createControl(Composite parent) {				initializeDialogUnits(parent);				Composite composite= new Composite(parent, SWT.NULL);		composite.setLayout(new GridLayout());		composite.setLayoutData(			new GridData(GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));		createLabel(composite, JarPackagerMessages.getString("JarManifestWizardPage.manifestSource.label"), false); //$NON-NLS-1$		createManifestGroup(composite);		createSpacer(composite);		fSealingHeaderLabel= createLabel(composite, JarPackagerMessages.getString("JarManifestWizardPage.sealingHeader.label"), false); //$NON-NLS-1$		createSealingGroup(composite);//		createSpacer(composite);		new Label(composite, SWT.NONE); // vertical spacer		fMainClassHeaderLabel= createLabel(composite, JarPackagerMessages.getString("JarManifestWizardPage.mainClassHeader.label"), false); //$NON-NLS-1$		createMainClassGroup(composite);//		fDownloadHeaderLabel= createLabel(composite, "What are your download extensions?", false);//		createDownloadExtensionGroup(composite);		restoreWidgetValues();		setControl(composite);		updateModel();		updateWidgetEnablements();		setPageComplete(computePageCompletion());		WorkbenchHelp.setHelp(composite, new DialogPageContextComputer(this, IJavaHelpContextIds.JARMANIFEST_WIZARD_PAGE));												}