Membuat Tombol Hide/show di blogspot

Spoiler for title :

copy paste tulisan ini di posting anda

<div style="margin: 5px 20px 20px;">
<div class="smallfont" style="margin-bottom: 2px;">
<b>Spoiler</b> for <i>title</i> : <input 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 = 'Hide'; } else { this.parentNode.parentNode.getElementsByTagName('div')[1].getElementsByTagName('div')[0].style.display = 'none'; this.innerText = ''; this.value = 'Show'; }" style="font-size: 11px; margin: 0px; padding: 0px; width: 75px;" type="button" value="Show" /></div>
<div class="alt2" style="-moz-background-clip: border; -moz-background-inline-policy: continuous; -moz-background-origin: padding; background: rgb(225, 228, 242) none repeat scroll 0% 0%; border: 1px inset; margin: 0px; padding: 6px;">
<div style="display: none;">

tulisan anda yang ingin di posting

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