JavaScript in Adobe Acrobat 8

[Wiizl]

I really need help on this one.
The problem is quite simple-
I've got many text fields that user has to fill. The thing I can't figure out is how NOT to allow go to next field if the length of current field's value is less than 6 digits. I tried something like this, but I know almost nothing about javascript:

var lg = getField("From[0]").value.length;
if(lg<6 && lg>0){
getField("From[0]").setFocus();
}

And I've put this in onBlur event... Could anybody help me?

[BigDaddyLH]

ECMAScript (sometimes called JavaScript) is unrelated the programming language Java, so I have moved your post to the correct forum.

[tswaters]

Hmmmm.... Generally you use javascript in PDF forms to show calculations.

validation is generally handled seperatly......... I use "Adobe Designer" to create forms and under "Properties", "Object", "Value" there's a drop drown for "type" of which lists, "User Entered-Optional [default]", "User Entered-Recommended", "User Entered-Required"... setting it to the latter will blcok a form submission if the field is blank ... that's generally how you control that sort of thing in pdf forms.

IMO: It's never nice to control your users' input onBlur/Focus -- if they try and submit a blank form, stop them -- but let 'em have a little freedom when filling it out.

[Wiizl]

I'd love to leave them freedom, but this 6 digit limitation is what my boss wants.. I've no choice,.. and no ideas also..