code of Google event to track conversion in Creativity tmpl

Good day!
I need your advice how implement code of Google analytics event to analyze conversions on my site sozdat-site.by:
• onClick="ga('send', 'event', 'Knopka', 'Podtverdit');"
to the code of Send button in Creativity joomla template (plugin gkContact) :
• <input type="submit" value="'.JText::_('PLG_GKCONTACT_SEND_BTN').'" class="bigbutton" />.
Google recommends such solution:
• <input type="submit" value="'.JText::_('PLG_GKCONTACT_SEND_BTN').'" class="bigbutton" onClick="ga('send', 'event', 'Knopka', 'Podtverdit');"/>.
But it doesn’t work, because of 500 server error

Hi

I'm sorry, but it will not work with our plugin. There is already some javscript attached to this action. You need to use a different solution.

Thanks for your reply. I know this solution doesn't work. May be you can give advise how can I impelement google java-script to the code of button in gavick tmpl?

Hi

I'm sorry, but honestly have no idea how to do this. I can try learn it in my private time, but with the amount of questions lately my private time is none existing. I think it would be best if You look for a different solution.