// rivercare
// code to validate the postcard input before submitting the form

function validate (f)
   {
   if (f.toname.value.length < 1)
      {
      alert ("Recipient's name is required");
      return false;
      }
   if (f.toemail.value.length < 1)
      {
      alert ("Recipient's email address is required");
      return false;
      }
   if (f.fromname.value.length < 1)
      {
      alert ("Sender's name is required");
      return false;
      }
   return true;
   }