presubmit_js - Push Button & Push Button with Images

JavaScript code to be run prior to the submission of the form.

Default value

Blank. No JavaScript is run.

Valid values

Any valid JavaScript function, or JavaScript code followed by a semicolon (;).

If you want to execute the presubmit JavaScript only, without running the JavaScript that submits the request (thus canceling the onclick event), append return false; to your presubmit JavaScript.