Bug 18729: Adapt holds.js

Bug 18729: Adapt holds.js

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit e56d083461fb5381a21b44c50a06e32a57fee046)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 64a48c633268010b8ae09c54e866f8084192dfbc)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>