not equal to

[ronke]

quick one ... how can i say a the length of a field can be either 6 or 8, nothing else.

Thanks for your response.

[gil davis]

var st = document.formName.fieldName.value;
if ((st.length == 6) || (st.length == 8))
{ // do your thing}
else
{ // error}

[pyro]

Just to show another way...

if (str.length != 6 || 8)

[Dan Drillich]

I have some doubts about the
if (str.length != 6 || 8) syntax.
Doesn't work for me in IE 5.

Cheers,
Dan

[Zach Elfers]

pyro, that should be:

if (str.length != 6 || str.length != 8) {

[pyro]

Color me surprised! Your're right Dan, it doesn't work. Guess I should have tested it before I posted. You will have to use Gil's method.

BTW Zach, your way doesn't work, either...

[Zach Elfers]

Yes it will, if you do it like this:

function length() {
if (str.length != 6 || str.length != 8) {
alert("The field must contain either 6 or 8 characters.);
str.focus();
}
}

...

<input type="button" value="Send" onClick="length();">