Monster Filter

[Chocolate Thief]

Please can anyone direct me to a monster filter?
What I mean is, I know the PRD gives monsters by CR etc.
Is there a simple search site so that I can enter parameters and find for example a CR4 large outsider monster that lives in the desert?

Thank you.

[alientude]

Advanced Monster Search.

[Chocolate Thief]

Brilliant, thank you so much for the link alientude :-)