--- /dev/null
+<& /elements/tr-input-mask.html,
+ format => '__:__:__:__:__:__',
+ allowed => '0123456789ABCDEFabcdef',
+ %opt,
+&>
+<%init>
+my %opt = @_;
+my $value = length($opt{curr_value}) ? $opt{curr_value} : $opt{value};
+$value =~ s/\W//g;
+$opt{curr_value} = join(':', $value =~ /../g);
+</%init>