after searching half a day I found the solution by looking in phpmyadmin
the solution :
in flle : components/com_jsjobs/views/job/tmpl/formjob.php
on line 1140 :
change :
$htm .= '<option value="' . $opt->id . '" selected="yes">' . $opt->js_job_form_field_title . ' </option>';
by
$htm .= '<option value="' . $opt->id . '" selected="yes">' . $opt->fieldtitle . ' </option>';
in line 1142 change :$htm .= '<option value="' . $opt->id . '">' . $opt->js_job_form_field_title . ' </option>';
by
$htm .= '<option value="' . $opt->id . '">' . $opt->fieldtitle . ' </option>';
This solution must be the same for other types of fields that do not work.
for exemple :
to display the value of the field "value" is : $opt->fieldvalue
to display the value of the field "title" is : $opt->fieldtitle
for french user :
les champs en menu déroulants de js_jobs ne fonctionne pas, pour résoudre le problème :
il suffit de changer la valeur de la ligne 1142 du fichier :
components/com_jsjobs/views/job/tmpl/formjob.php
il faudra probalement en changer d'autres pour les boutons radios etc...
thank-you for your good component.
For information :
I adapted it for sports activities to search for sports teams register and posting ads sports register and post their ability to get everyone connected.