Search grid - set focus on field after cleaning search form

Scriptcase 9 General
#1

Hello.
In a search grid form SC generates automatically a button “clean form” to clear all search fields.

How can I set a focus on a specific field after the form has been cleared ?

I have tried to put this script on InitEvent:

echo "<script>document.addEventListener('DOMContentLoaded', function() {document.getElementById('SC_codiceattrezzatura').focus();}, false);</script>";

but it works only when the search form is loaded for the first time and does not work after the form has been cleared.