cocoon-skins

function get_skin_url() {
    $skin_file = get_theme_option( OP_SKIN_URL, '' );
    
    if( is_single( array( 1125, 732, 452, 5591, 5987 ) ) ) {
        $skin_file = get_template_directory_uri().'/skins/skin-modernblack/style.css';
    }
    
    return $skin_file;
}