Validating special characters
One of the questions I get asked again and again is how to validate a field value in an Acro Form with a custom validation script.
Adobe provided a lot of infrastructure to do that with just a simple script.
It is necessary to do a server side and client side validation of the form before someone hits the submit button.
For each of eight dialect regions, 50 male and female speakers having a range of ages and educational backgrounds each read ten carefully chosen sentences.The onsubmit attribute tells the browsers that when a user submits the form or in other words clicks the submit button of the form, then activate the Java Script code succeeding.