Ramp combined with standard shader ??

Hello guys and girls,i am stuck with unity shader i cannot combine standard shader with a ramp texture so i can convert it to a standard skin shader ,when i put my custom lighting function it doesn't give me an error but it doesn't seem to work either,and i tried everything plus the resources are limited in unity shaders.Help guys.(This is a screenshot of a model i made using my custom shader 'UniversalShader')