Check all elements in form with Javascript

Question

I know javascript in the beginning level, but I have a problem.

I have 7 input elements in a form and I want all of them to be filled. I came up with t

Answer 1

This is the simple and dirty way.

A better way is to update a validation message that the fields are required.

function validateForm()
{
  var fields = ["name, phone", "compname", "mail", "compphone", "adres", "zip"]

  var i, l = fields.length;
  var fieldname;
  for (i = 0; i < l; i++) {
    fieldname = fields[i];
    if (document.forms["register"][fieldname].value === "") {
      alert(fieldname + " can not be empty");
      return false;
    }
  }
  return true;
}