mailcrypt

The jQuery MailCrypt Plugin is an easy to use extension to protect the email links on your website against spam bots.

MailCrypt - AntiSpam Email Encryption v.1.0.0

Include this in your HTML head or Footer

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/mailcrypt.js"></script>

<script type="text/javascript">
	$(document).ready(function(){
		$('a.mailcrypt').mailcrypt();
	});
</script>

<a href="kontakt.html" class="mailcrypt">info<span><span>∂</span></span>webdesign-podcast.de</a>

You can replace the ∂ sign with an @ image or another sign what ever you want.