Im trying to do this for my forums but every time I use one, I get one that doesn't work for FF, Im wondering how to do this? Im using Ipb, and it has the

[tag={option}]{content}[/tag]

I tried one on here that worked but it wouldn't close =(

<div style="margin:20px; margin-top:5px"> <div class="smallfont" style="margin-bottom:2px"><b>Spoiler</b> for <i>Hidden Text</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;"> Blah blah blah </div> </div> </div>

[spoiler=Hidden Text]Blah blah blah[/spoiler]