function setMale(name,domain,separator,b){
    $$('a.' + name).each(function(s) {
      var name = s.readAttribute('href').toQueryParams()[separator]; 
      var text = s.hasClassName('keep') ? s.innerHTML : name + '@' + domain;
      s.setAttribute('href', 'mailto:' + name + '@' + domain);
      s.update(text);
    });
  }