tumblr_sharethis.js

<script type="text/javascript" src="http://w.sharethis.com/button/sharethis.js#tabs=web%2Cpost%2Cemail&amp;charset=utf-8&amp;style=default&amp;publisher=lolz"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/prototype/1.6.0.2/prototype.js"></script>
<script language="javascript" type="text/javascript">
  document.observe('dom:loaded', function() {
    $$('.ShareThis').each(function(element) {
      element.innerHTML = '<a class="stbutton stico_default" title="ShareThis via email, AIM, social bookmarking and networking sites, etc." href="javascript:void(0)"><span class="stbuttontext">ShareThis</span></a>';
      var title = element.previous('h2').down('a').innerHTML;
      var url = element.previous('h2').down('a').href;
  
      var shareObject = SHARETHIS.addEntry({
        title: title,
        url: url
      }, {button:false} );
      shareObject.attachButton(element);
    })
  })
</script>