Android - Open new Activity from extends framelayout

I'm doing that sample:

http://code.google.com/p/proyectouvipool/source/browse/trunk/Android/PFC/src/pablo/developer/BalloonOverlayView.java?r=87

I want to change at this line

public void onClick(View v) {layout.setVisibility(GONE);}

to

public void onClick(View v) {

Intent myIntentopen = new Intent(MainActivityold.class, MainActivitynew.class);
startActivity(myIntentopen);

}

but it dosn't work.

thanks.