$set{EXTS,$split{Edoc Edocx Eodp Eods Eodt Epdf Epps Eppsx Eppt Ertf Etxt Exls Exlsx}}
$map{$or{$cgilist{B},$opt{EXTS}},$setmap{BE,$_,1}}
Extensions:
$map{$opt{EXTS},
$substr{$_,1}:<INPUT TYPE=checkbox NAME=B VALUE=$_ $if{$eq{$opt{BE,$_},1},CHECKED}>}
