I just got a job offer! [SOLUTION]

I was expecting an answer from my job application, aand they said yes. I declare happy times! All who are not having fun should be rounded up and shot!

There may or may not be a giveaway for this occassion. If there were, it'll probably be something like $30.01 contrib. But probably there isn't. I mean, I just got the offer. Who am I, the queen?

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Edit: Thank you all for your wishes. I had a few job offers already, but the one I was most interested in accepted. I hope I won't regret this decision :)

Solution: There were images hidden in the source. It was pretty easy to guess, you could've overlaid the images using multiply or difference blending mode in any GFX program. Or, like many other people, you could just flip back and forth :)