sc=Scene.GetCurrent()

context = sc.getRenderingContext()

objs = sc.getChildren()

visiblelayers = sc.layers

#allcameras = []
#for cam in objs:

#		if cam.getType() == 'Camera':

#				allcameras.append(cam.getName())	



allvcameras = []

#print visiblelayers

for cam in objs:

	if cam.getType() == 'Camera' and cam.layers == [any(visiblelayers)]:#cam.layers == 1:#

		#print visiblelayers

		#print cam.getName()

		#print cam.layers

		allvcameras.append(cam.getName())