scketch in scketch

Know any a way to do a scketch in a schetch?
Example: when scketch1 on the arduino detect a button interupt then open schetch2 on the arduino.
Can any give a example or tell how to do this please?

That's an unusual question . Why are you asking that ?
Normally, when people post here , they are asking how to do something, not how to call a sketch from another sketch.
When you think about it , the question doesn't make any sense because a sketch is just a program with code. Why would you put the code you want to run in a separate sketch ? Does that make any sense ? If you want to call a function in a sketch, why wouldn't
you put that function in the sketch from which you want to call it ?
Can you explain why you are asking such a strange question ?