function service_navi(sn){
    
    if(sn){
        document.getElementById(sn).style.display = 'block';
    } else {
        var sne = document.getElementsByClassName('sevice_outline01');
        
        for(i=0; i<sne.length; i++){
            sne[i].style.display = 'none';
        }
    }
}