scope.setPrototype( parentScope );
	Scriptable newSubScope( Scriptable parentScope )	{		if ( parentScope == null )			parentScope = getSharedScope();				Context cx = Context.enter( );		try		{			Scriptable scope = cx.newObject( parentScope );			scope.setParentScope( parentScope );			return scope;		}		finally		{			Context.exit( );		}	}