[thelist] js testing for empty fields

[Hershel Robinson]

> you could also just check for:
>
>     if(myForm.elements['myField'].value) { doSomething() }
>
> assuming your form was anything but boolean

Well, if the user enters 0 (zero) then the above if expression would
evaluate as false in JavaScript, even though the user indeed entered data,
so I wouldn't actually recommend this. :)

Hershel