Thanks for the feedback, really useful, well, the aim for this TIP is simple, just to hide/show the email.
The sencond stage will be to show the email for the public but not in an easy to grab it by spammers, lets say, the email will be shown like myemail AT thesite_dot_com, or if imagemagick is installed, then we'll show it as an image, but this will go in another TIP.
