Trigger Google Analytics Event with Form Submission

Where you paste that code?
“Here is the code I used:
hbspt.forms.create({
css: ‘’,
portalId: ‘XXXXXXX’,
formId: ‘XXXXXXX-XXX-XXX-XXXXXXX’,
onFormSubmit: function($form) {
”_gaq.push([’_trackEvent’, ‘Contact’, ‘contact_us_form’, ‘Main_Contact_Us’, false]);"
},
submitButtonClass: ‘btn btn-primary btn-hubspot’,
locale: ‘en’,
translations: {
en: {phoneInvalidLengthOrFormat: ‘Please enter a valid phone number.’}
}
});"

I have an hubspot form and i want to do that on click button, but i don’t know where is the place to paste this code p.e. “ga(‘send’, ‘event’, ‘Videos’, ‘play’, ‘Fall Campaign’);”

Thanks for your time.