function checkFields(form, fields)
{
  missinginfo = "";
  for(i=0; i<fields.length; i++)
  {
    if (form.elements[fields[i]].value == "")
    {
      missinginfo += "\n     -  " + fields[i];
    }
  }
  
  if (missinginfo != "")
  {
    missinginfo = "______________________________________\n"
                + "You failed to correctly fill in the following fields:\n"
                + missinginfo
                + "\n"
                + "______________________________________\n"
                + "\nPlease re-enter and submit again!";
    alert (missinginfo);
    return false;
  }
  else 
  {
    return true;
  }
}