Execute javascript before form is submitted on clicking a Paypal button -

i'm trying execute js right before paypal button clicked, this:

$('#paypal-button-container form').submit(function(){   beforepaypalsubmit(); }); 

the contents of beforepaypalsubmit() are:

function beforepaypalsubmit() {   $.ajax({     type:     'get'   , url:      urls.beforepaypalsubmit   , data:     {       id: state.id     }   , async:    true   }); } 

this simple ajax call should result in database row being inserted isn't. 0 php error in logs. actually, url doesn't gets called (checked in access log). if simple alert() instead of beforepaypalsubmit(), gets called. missing?

try putting onclick event on element clicked , submits form. code within onclick fired before submit.