Multitexture intro

I am learning to use multitexture on WebGL. I’d like to do the following:
Pass 2 textures to the shader: texture0 and texture1
Display texture0 if I access texture0
Display texture1 if I access texture1

I have the following fragment shader code snippet:

    uniform sampler2D texture0;
    uniform sampler2D texture1;

    varying vec2 v_texCoord;

    void main()

		vec2 texCoord = vec2(v_texCoord.s, 1.0 - v_texCoord.t);
		vec4 texel0 = texture2D(texture0, texCoord);
		vec4 texel1 = texture2D(texture1, texCoord);

		gl_FragColor = vec4(, texel0.a);

I have the following JavaScript code snippet:

    // Activate 2 textures
    gl.uniform1i(gl.getUniformLocation(gl.program, "texture0"), 0);
    gl.bindTexture(gl.TEXTURE_2D, photoTexture0);

    gl.uniform1i(gl.getUniformLocation(gl.program, "texture1"), 0);
    gl.bindTexture(gl.TEXTURE_2D, photoTexture1);

The above code always displays texture1 regardless

		gl_FragColor = vec4(, texel0.a);

or (notice the above code accesses texel0 of texture0 and below code accesses texel1 of texture1)

		gl_FragColor = vec4(, texel1.a);

Since the above code does not work as I expected and I am new on this, I am wondering if I have done something wrong or I misunderstand the concept.

Any help is appreciated. Thanks in advance for your help.

I have just changed

// Changed from 0 to 1
gl.uniform1i(gl.getUniformLocation(gl.program, "texture1"), 1);	

Unfortunately, it still does not work as expected.

I found and fixed the problem

    gl.activeTexture(gl.TEXTURE0);   // remove the "GL_" on GL_TEXTURE0
    gl.bindTexture(gl.TEXTURE_2D, photoTexture0);

    gl.uniform1i(gl.getUniformLocation(gl.program, "texture1"), 0);
    gl.activeTexture(gl.TEXTURE1);     // remove the "GL_" on GL_TEXTURE1

I cut’n’paste the GL_TEXTURE0 from an example written in C language.

Hello pion,
I am learning webgl and am trying to do a multi-texture as well. Is there any way you can post your full working code as an example?