Tutorial: Cómo Agregar Caja Pop Up 'Follow' de Twitter para Blogger

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#subscribe a:visited {
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<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js'></script>
<script src="http://yourjavascript.com/11215013191/jquery.colorbox-min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function(){
if (document.cookie.indexOf('visited=false') == -1) {
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var expires = new Date((new Date()).valueOf() + fifteenDays);
document.cookie = "visited=true;expires=" + expires.toUTCString();
$.colorbox({width:"400px", inline:true, href:"#subscribe"});
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<!-- This contains the hidden content for inline calls -->

<div style='display:none'>
<div id='subscribe' style='padding:10px; background:#E0F2F7;'>
<h3 class="box-title">Mantente en contacto con nosotros a través de Twitter. Sólo presiona el botón Follow<center><p style="line-height:15px;" >▼</p></center></h3>
<center>

<div class="textwidget">
<script type="text/javascript" src="http://s.moopz.com/fanbox_init.js"></script><div id="twitterfanbox">
<script type="text/javascript">fanbox_init("@juandromero");</script></div>
</div>

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width: 290px !important; /* Ancho del gadget */
height: 250px !important; /* Alto del gadget */
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<a href="http://www.imagenescopadas.com/" style="display: block; width: 30px height: 30px; text-indent: -999px; text-decoration: none">imagenes copadas</a> /* Enlace invisible, Gracias por dejarlo. */

</center>
</div>
</div>