Firefox has changed a few things in its plugin infrastructure and that means Java will no longer work properly after version 52.0 (especially if you are using Checkpoint VPN to access work).

Fortunately one can always install older versions, present...

This one is precious, as it took me a long time to figure out. As a side-note, Java apparently only supports 128bit AES.

Here's the Ruby code:

def encrypt(string, pwd)     salt = OpenSSL::Random.random_bytes(16)
    # prepare cipher for encryption...

Ok, so here's the deal: If you upgrade to [OSX Mavericks](https://www.apple.com/osx/preview/), only had JAVA 7 installed, and try to run anything that requires JAVA you will probably get a nice dialog like this one:

All my attempts to make...

Recently i had to create a gradient background for one of the panels in our [POS application](http://inforviegas.pt/wp-content/uploads/2010/09/VOS.jpg), so i though i'd share the code.

You need to pass the top and bottom colors of the gradient and...