if ( function_exists('register_sidebar') ) {
    register_sidebar(array(
        'name'=>'Left Sidebar',
        'before_widget' => '',
        'after_widget' => '',
        'before_title' => '<h3 class="widgettitle">',
        'after_title' => '</h3>',
    ));
    register_sidebar(array(
         'name'=>'Right Sidebar',
        'before_widget' => '',
        'after_widget' => '',
        'before_title' => '<h3 class="widgettitle">',
        'after_title' => '</h3>',
    ));  
} ?>