Twitter intent loads in window as it should *and* reloads page to URL


I am loading

<!-- twitter intent -->
<script type="text/javascript" src="//"></script>

at the top in the header, and have a link like so:

<a id="twitter-follow" href=";picturebunch+to+speed+date+local+singles+without+leaving+the+house!&hashtags=dating,truelove">Share us on Twitter</a>

It loads in the popup window as it should, and refreshes the current page. Help?