javascript - Does this attach a click even to an anchor tag? -

i need add click event anchor google analytics event tracking. have main event tracking code in head section. i've done in head section:

<script type='text/javascript'> window.onload=function() { document.getelementbyid("btn_2_3a4z711fbd39d2fc9634f0yt66b45ht9").addeventlistener("click", "_gaq.push(['_trackevent', 'webinar', 'register', 'webinar-july-15']);"); } </script> 

when inspect anchor tag, don't see event there. i'm going off of example: http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_element_addeventlistener. event doesn't show in example either when inspect it.

i don't see event coming through in ga. tried modifying code testing don't see alert:

.addeventlistener("click", "_gaq.push(['_trackevent', 'webinar', 'register', 'webinar-july-15']);alert('popup');"); 

any ideas i'm doing wrong?

any ideas i'm doing wrong?

yep, you're passing string second argument addeventlistener when should function.

replace

document.getelementbyid("btn_2_3a4z711fbd39d2fc9634f0yt66b45ht9").addeventlistener("click", "_gaq.push(['_trackevent', 'webinar', 'register', 'webinar-july-15']);"); 

by

document.getelementbyid("btn_2_3a4z711fbd39d2fc9634f0yt66b45ht9").addeventlistener("click", function() {     _gaq.push(['_trackevent', 'webinar', 'register', 'webinar-july-15']); });