How to pass texture to uniform varible in fragment shader

[Kellon29]

Hello.
I try to create displacement map shader via cocos2d-js, and i can’t finde any function of CCGLProgram that use texture as parameter. On C++ version of engine I use glProgramState->setUniformTexture("displacementMap", displacementTexture);
But on js version of engine this function exist only in jsb.
The question is hove to pass texture to fragment shader?
Thanks.