GA action tracking

I would like to add some sustom GA tracking via
onclick="_gaq.push(['_trackEvent', 'Download','loader1'])
Is there any way to add something like that trigger: add_theme_support(‘avia_template_builder_custom_tab_toogle_id’);?
Just to add coresponding elements to all buttons and tags?
I allready saw that article about contats form, and allready use it here. But unfortunatly I need some other elements to track. For example big green button on that page – I should track downloads. Really say sometimes we need custom track for simple A elements.
Google Analitics pretty common, and making some easy custom tracking form could be pretty usefull.