var Offices = new Array('Offices1', 'Offices2','Offices3', 'Offices4');
      var selectedOffice = null;
      function showOffices(name)
      {
        for(i = 0; i < Offices.length; i++)
        {
          if(document.getElementById(Offices[i]) == null) {
            continue;
          }
          else {
            document.getElementById(Offices[i]).style.display = (name == Offices[i]) ? 'block':'none';
          }
        }
        return false;
      }