Acrobat 6: Field validation

Do you want the user to enter spaces? The most straight forward approach would be to only allow numeric information to be entered. You can do this by opening the properties dialog for your field. Then select the "Format" tab and select the format category "Number". Specify how many decimal places, then select the "Validation" tab and specify the limites (1 to 9999999999).

If this is not sufficient, I can give you more information about how to do this with JavaScript.

Is more a regular expression: The first char should be 1 to 9 (not 0!) and the follwoing 9 chars should be 0 to 9.
Examples:
123456
234
99999999

Thank you,
I found the workaround:

1. onBlur

- conversion if field content to String! (--> 01 will not be parsed to 1)
var sNodeString = sNode.valueAsString;

2. Test field content with regular expression

var regExpr =  /^[1-9][0-9]{0,9}$/;