fGroupProjectAction= new GroupAction(SearchMessages.getString("JavaSearchResultPage.groupby_project"), this, LevelTreeContentProvider.LEVEL_PROJECT);
fGroupProjectAction= new GroupAction(SearchMessages.getString("JavaSearchResultPage.groupby_project"), SearchMessages.getString("JavaSearchResultPage.groupby_project.tooltip"), this, LevelTreeContentProvider.LEVEL_PROJECT);
	private void initGroupingActions() {		fGroupProjectAction= new GroupAction(SearchMessages.getString("JavaSearchResultPage.groupby_project"), this, LevelTreeContentProvider.LEVEL_PROJECT); //$NON-NLS-1$		JavaPluginImages.setLocalImageDescriptors(fGroupProjectAction, "prj_mode.gif"); //$NON-NLS-1$		fGroupPackageAction= new GroupAction(SearchMessages.getString("JavaSearchResultPage.groupby_package"), this, LevelTreeContentProvider.LEVEL_PACKAGE); //$NON-NLS-1$		JavaPluginImages.setLocalImageDescriptors(fGroupPackageAction, "package_mode.gif"); //$NON-NLS-1$		fGroupFileAction= new GroupAction(SearchMessages.getString("JavaSearchResultPage.groupby_file"), this, LevelTreeContentProvider.LEVEL_FILE); //$NON-NLS-1$		JavaPluginImages.setLocalImageDescriptors(fGroupFileAction, "file_mode.gif"); //$NON-NLS-1$		fGroupTypeAction= new GroupAction(SearchMessages.getString("JavaSearchResultPage.groupby_type"), this, LevelTreeContentProvider.LEVEL_TYPE); //$NON-NLS-1$		JavaPluginImages.setLocalImageDescriptors(fGroupTypeAction, "class_obj.gif"); //$NON-NLS-1$		fCurrentGrouping= LevelTreeContentProvider.LEVEL_PACKAGE;	}