function checkContact(txt, cname, ccity, email, email2) {
  var ddata = document.contact, err = "";
/*
  if (ddata.aj5a.value == "") {
    err += ' - ' + cname + '\n';
  } 
*/
  if (ddata.aj2a.value == "") {
    err += ' - ' + email + '\n';
  }
  else {
    if (!IsMail(ddata.aj2a.value)) {
    err += ' - ' + email2 + '\n';
    }
  }
  
  if(ddata.aj3a.value.length < 2) {
    err += err += ' - ' + ccity + '\n';
  }
   
  if (err != "") {
    window.alert(txt + ':\n' + err);
     
    return false;
  }
  else {
      return true;
    }
}

function IsMail(val) {
  var im = new RegExp("^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,3})$");
  if (im.test(val)) {
    return true;
  }
  else {
    return false;
  }
}