$mech->follow_link( text_regex => /select\sall/i ) if $mech->success();
$mech->find_link(text_regex=>/select/i);

##</code><code>##

$mech->tick( 'massall', /\s/ );
$mech->tick( 'massall', / / );
$mech->tick( 'massall', '' );
$mech->tick( 'massall', 0 );
$mech->tick( 'massall', '&nbsp;' );