function issue(url) {
  paramList = 'family_name=' + document.forms[0].family_name.value
            + '&personal_name=' + document.forms[0].personal_name.value
            + '&tel_1=' + document.forms[0].tel_1.value
            + '&tel_2=' + document.forms[0].tel_2.value
            + '&tel_3=' + document.forms[0].tel_3.value;

  new Ajax.Updater('issue_contact_number', url,
    {
      method: 'post',
      parameters: paramList
  });
  
};