Bug 95311 [javadoc wizard] Allow setting of -source 1.5 through UI
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javadocexport/JavadocTreeWizardPage.java
});
		fDestinationBrowserButton= createButton(group, SWT.PUSH, JavadocExportMessages.JavadocTreeWizardPage_destinationbrowse_label, createGridData(GridData.HORIZONTAL_ALIGN_END, 1, 0)); 
		SWTUtil.setButtonDimensionHint(fDestinationBrowserButton);
		
		fCustomButton= createButton(group, SWT.RADIO, JavadocExportMessages.JavadocTreeWizardPage_customdocletbutton_label, createGridData(GridData.HORIZONTAL_ALIGN_FILL, numColumns, 0)); 
		
		
		fDocletTypeLabel= createLabel(group, SWT.NONE, JavadocExportMessages.JavadocTreeWizardPage_docletnamefield_label, createGridData(GridData.HORIZONTAL_ALIGN_BEGINNING, 1, convertWidthInCharsToPixels(3))); 
		fDocletTypeText= createText(group, SWT.SINGLE | SWT.BORDER, null, createGridData(GridData.HORIZONTAL_ALIGN_FILL, numColumns - 1, 0));
		((GridData) fDocletTypeText.getLayoutData()).widthHint= 0;
		
		
		fDocletTypeText.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				doValidation(CUSTOMSTATUS);
			}
		});
		fDocletLabel= createLabel(group, SWT.NONE, JavadocExportMessages.JavadocTreeWizardPage_docletpathfield_label, createGridData(GridData.HORIZONTAL_ALIGN_BEGINNING, 1, convertWidthInCharsToPixels(3))); 
		fDocletText= createText(group, SWT.SINGLE | SWT.BORDER, null, createGridData(GridData.HORIZONTAL_ALIGN_FILL, numColumns - 1, 0));
		((GridData) fDocletText.getLayoutData()).widthHint= 0;
		
		fDocletText.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				doValidation(CUSTOMSTATUS);
			}
		});
		
		fCustomButton.addSelectionListener(new EnableSelectionAdapter(new Control[] { fDocletLabel, fDocletText, fDocletTypeLabel, fDocletTypeText }, new Control[] { fDestinationLabel, fDestinationText, fDestinationBrowserButton }));
		fCustomButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {