fix modal z-index


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22880 35612d4c-9d10-0410-837c-bf9dd1be60d7
fix last


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22881 35612d4c-9d10-0410-837c-bf9dd1be60d7