<?php
/**
 * The blog(site) sideber 
 *
 * @since   1.0
 * @version 1.0
 */
?>
<?php
if ( has_nav_menu( 'side' ) ) {
    // Side menu.
    wp_nav_menu(
        array(
            'theme_location'  => 'side',
            'container_class' => 'menu-side-container',
            'menu_class'      => 'menu-side',
        )
    );
}
// Home sidebar is displayed at only front page.
if ( is_front_page() ) {
    if ( is_active_sidebar( 'home' ) ) {
        dynamic_sidebar( 'home' );
    }
}
// Sub sidebar is displayed at only sub page.
if ( ! is_front_page() ) {
    if ( is_active_sidebar( 'sidebar' ) ) {
        dynamic_sidebar( 'sidebar' );
    }
}
// Common sidebar is displayed at all.
if ( is_active_sidebar( 'common' ) ) {
    dynamic_sidebar( 'common' );
}