Spoiler tag without javascript?

[pjkcards]

A few users have said the spoiler tag isn't working, and I suspect it is because their phone doesn't allow it. Is it possible to do it without javascript? Or what is the best way to handle this issue?

Right now this is what we're using:

<div style="margin:20px; margin-top:5px">
<div class="smallfont" style="margin-bottom:2px"><b>Spoiler</b>: <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>

Thanks.