Thanks the code you said works but gives me errors (uninitialised) for the links that havent got class identified so I decided to use if statement instead of next unless :

 next unless defined($token->[1]{href}) || defined($token->[1]{class})
+;
  if (defined($token->[1]{class}) && $token->[1]{class} =~ /top10_link
+/){

do some code
}
if($token->[1]{href} =~ /\?page=/){
do some code
}
[download]

Thanks again