question: enables the handler . concode_field_sep boolean registered concode_elem_sep GURLHandler INSTANCE concode_elem_sep boolean enabled concode_elem_sep String url concode_field_sep int RemoveEventHandler concode_elem_sep void callback concode_elem_sep void finalize concode_elem_sep GURLHandler getInstance concode_elem_sep int InstallEventHandler concode_elem_sep void register
target: void function ( ) { this . enabled = true ; if ( url != null ) callback ( url ) ; this . url = null ; }