Colocar Botão de Abrir CBOX e Fechar CBOX no Blogger

 Código da Video Aula

<br /> <center><img style="width: 180px; height: 83px;" src="http://img254.imageshack.us/img254/1751/bannercbox.png" alt="Cbox" border="0" /></center><center style="font-style: normal;"><div class="smallfont" style="margin: 0px 0px 2px;"><input style="margin: 0px; padding: 0px; font-size: 15px; width: 180px;" onclick="if (this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display != '') { this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display = ''; this.innerText = ''; this.value = 'Fechar CBOX'; } else { this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display = 'none'; this.innerText = ''; this.value = 'Abrir CBOX '; }" value="Abrir CBOX " type="button" /></div><div class="alt2" style="margin: 0px; padding: 6px;"><div style="display: none; "><div style="text-align: left;"><span class="Apple-style-span" style="font-size:medium;"><span class="Apple-style-span" style="font-family:'trebuchet ms';"><br />

Site da CBOX: www.cbox.ws