function checkform(form) {
  var pass=true;
  
  for (i = 0; i < form.length; i++) {
    var tempobj = form.elements[i];
    if (tempobj.alt == "required") {
      if ((tempobj.value=='')) {
        pass=false;
        break;
      }
    }
  }
  
  if (!pass) {
    FieldName=tempobj.name.toUpperCase();
    alert("The " + FieldName + " field is a required field to submit a " + form.name + " entry.");
    return false;
  } else {
    return true;
  }
}