function validateForm(form) {
  var warn = "";

  if (form.name.value == '') {
    warn += "Name is required\n";
  }
  if (form.title.value == '') {
    warn += "Title is required\n";
  }
  if (form.company.value == '') {
    warn += "Company is required\n";
  }
  if (form.phone.value == '') {
    warn += "Phone is required\n";
  }
  if (form.email.value == '') {
    warn += "E-mail is required\n";
  }

  if(warn != "") {
    alert(warn);
    return false;
  } else {
    return true;
  }

}