{
   my %store = ();

sub attach
{
   my ($type, $value) = @_;
   if ($value)
   {
      $store{$type} = $value};
   }
   else
   {
      my $default = "height=19 width=15 src='/images/attach/UNKNOWN.gif' border=0";
      return $store{$type} if $store{$type};
      $default =~ s/UNKNOWN/$type/;
      return $default;
   }
}
}

# Now, call 
attach('file',"height=19 width=15 src='/images/attach/file.gif' border=0");
attach('URL',"height=19 width=15 src='/images/attach/URL.gif' border=0");
# to initialise, and 
attach($mime_type);
# to access