javascript - tumblr share button - get callback? -


tumblr generated following code share button. how capture callback when positively actioned share?

<!-- put tag wherever want button appear --> <span id="tumblr_button_abc123"></span>  <!-- set these variables wherever convenient --> <script type="text/javascript"> var tumblr_link_url = "http://www.example.com/permalink/my-article"; var tumblr_link_name = "my awesome article"; var tumblr_link_description = "lorem ipsum..."; </script>  <!-- put code @ bottom of page --> <script type="text/javascript"> var tumblr_button = document.createelement("a"); tumblr_button.setattribute("href", "http://www.tumblr.com/share/link?url=" + encodeuricomponent(tumblr_link_url) + "&name=" + encodeuricomponent(tumblr_link_name) + "&description=" + encodeuricomponent(tumblr_link_description)); tumblr_button.setattribute("title", "share on tumblr"); tumblr_button.setattribute("style", "display:inline-block; text-indent:-9999px; overflow:hidden; width:81px; height:20px; background:url('http://platform.tumblr.com/v1/share_1.png') top left no-repeat transparent;"); tumblr_button.innerhtml = "share on tumblr"; document.getelementbyid("tumblr_button_abc123").appendchild(tumblr_button); </script>


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