var isMobileBrowser=false;
<a href="http://twitter.com/share" class="twitter-share-button" data-count="vertical" data-via="Sonia_War" data-related="http://fotolog.miarroba.es/sonia_war/:Mi Fotolog" data-lang="es">Tweet</a><script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>