I don't usually use strikethrough myself, but I do use spoilers on forums that have it It issn't that hard t implement in vB, either.
BBCODE tag name is something like this: Example like this:
Code:
[spoiler=Here is your title]And here is your text[/spoiler]
and HTML Replacement like this:
Code:
<div style="margin:20px; margin-top:5px">
<div class="smallfont" style="margin-bottom:2px"><i>{option}</i> <input type="button" value="Show" style="width:45px;font-size:10px;margin:0px;padding:0px;" 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'; }">
</div>
<div class="alt2" style="margin: 0px; padding: 6px; border: 1px inset;">
<div style="display: none;">
{param}
</div>
</div>
</div>
Use {option} and remove if not use should be marked as yes, also.