Does anyone know an algorithm to swap two edges in this position, without scrambling the first two layers?

Does anyone know an algorithm to swap two edges in this position, without scrambling the first two layers?

Disclaimer: Possible duplicate of (Swap the edges in a solved Rubik's cube). I would post this as a comment, but I don't have enough rep to do so yet :P
Short answer: it's not possible to solve, and you can't get to that configuration from a standard Rubik's Cube in the first place.
You will find the answer and explanation to your exact question in the above link.