... tags.$chat_buffer .= "</TD>\n";$chat_buffer .= "\n<TD>";Chapter 26: WebChat 7 13 local($session_file);local($temp,@fields, @f);local($high_number, $high_message);$session_fileappends ... sequence number to display new messages.(@f, $high_message);} # End of GetSessionInfoChapter 26: WebChat 718if ($msg_to_user eq "ALL" ||$msg_to_user =~ /^$user_name$/i ||$msg_from_user ... read messagefor the user. In other words, now that the user’s last read message num-Chapter 26: WebChat 717$msg_to_read -= $how_many_old;If there are fewer messages in the directory than $how_many_old...