if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
$dbh->do("INSERT INTO systempreferences (variable,value,explanation,options,type) VALUES('OpenLibraryCovers',0,'If ON Openlibrary book covers will be show',NULL,'YesNo');");
print "Upgrade to $DBversion done (Add syspref OpenLibraryCovers)\n";
if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
$dbh->do("INSERT INTO systempreferences (variable,value,explanation,options,type) VALUES('OpenLibraryCovers',0,'If ON Openlibrary book covers will be show',NULL,'YesNo');");
print "Upgrade to $DBversion done (Add syspref OpenLibraryCovers)\n";