Set shader back to default tv3d shader

[petrus]

I have a little problem. I want to be able to set a custom shader on my objects, render them to a render surface and then change back to the default TV3D shaders.
Is this possible, because I can't find the function for this.
For example: suppose my landscape editor uses a custom shader, but switching between editing and playing mode will require switching back to the default shader.
I'm sure there has to be something like this, but how?

[Zaknafein]

SetShader(null/Nothing) should do the trick.

[petrus]

Great thanx.