Does anyone know how to alter pics online? like changing hair? skin tone? not just cropping and red-eye?

What program can I use to alter pics? I'm not talking about photoshop cropping, rotating, etc. I'm talking about putting heads on bodies, changing hair, etc.Does anyone know how to alter pics online? like changing hair? skin tone? not just cropping and red-eye?
you can try a few sites that have touch up options or layers and effects,





FotoFlexer


http://fotoflexer.com/


Splashup


http://www.splashup.com/tour/


Blibs LunaPic


http://www73.lunapic.com/editor/





..Does anyone know how to alter pics online? like changing hair? skin tone? not just cropping and red-eye?
Photoshop is the best program but it is a wee bit costy.
I think you need a program like adobe photoshop... it should allow you to do a lot.