A charm indeed! :)

Thanks to both for all suggestions and codes.


Final code for other who are interested...

Build/Templates Globals:

Rand_Numlett

sub {
# Displays random num/lett on page load.
my @random = (0 .. 9, 'a' .. 'z', 'A' .. 'Z');
my $rand = '';
for (1 .. 8) {
$rand .= $random[rand @random];
}
return $rand;
}


In template:

<%Rand_Numlett%>