title: ASP.NET Form validation - success event in JavaScript?
body: <p>I would like to subscribe to whatever event is fired when my ASP.NET form is validated successfully.</p>
  
  <p>Here is the scenario: On the click of a button on a payment form, I want to show a message 'processing,' however I only want to show this button when the for is validated succesfully.</p>
  
  <p>I am using native ASP.NET form validation.</p>