Posting your email address on a website is a sure-fire way to get an inbox full of Spam. The Enkoder for Mac OS X helps protect email addresses by converting them into encrypted JavaScript code so only real people using real browsers will see them.

A PHP function to protect the E-mail address you publish on your website against bots or spiders that index or harvest E-mail addresses for sending you spam. It uses a substitution cipher with a different key for every page load. Look at the generated XHTML in the example while pressing the browsers "reload" button to see this in effect.