[How to make a HUD to change textures on sl avatar clothes]

I have made a HUD that change textures on prims and mesh objects. I would like to know hoe to make the same for changing textures clothes on sl standard avatar. 

[is there a parameter for Maitreya HUD texture note to set the texture color ?]

I have made a HUD for Maitreya, that have several buttons.  Each button sets a diferent color for the same texture. A solution is to upload the same texture with  the diferent colors, but it will easier and less expensive, to have in the note texture parameters, one parameter to set the color.