For security reasons the build-in editor doesn't allow the onclick HTML attribute. So you want to use the Google Analytics Event Tracking service, this plugin helps to you.

• Google Analytics: Event Tracking

1. Add new events on the Back-end > Settings > Tracking Visitors page.
2. Insert the Google Analytics code to the head of website.
3. Insert the jQuery JavaScript library to the website.
4. Add the Google event code component to the current layout or page.
5. Extend the links or buttons with the special attributes.

Event name: interest-contact

HTML code: <a href="{{ 'contact'|page }}" data-google-event-name="interest-contact">Contact</a>

• en - English
• hu - Magyar
• sl - Slovenščina

1. Go to the Settings > Updates & Plugins page in the Backend.
2. Click on the Install plugins button.
3. Type the Tracking Visitors text in the search field.