JavaScript - http://www.perl-community.de/bat/poard/thread/13224
Javascript URL thread: "javascript:void(hide_all(true));"
Error:
name: TypeError
message: Statement on line 27: Cannot convert undefined or null to Object
stacktrace:   Line 27 of inline#7 script in http://www.perl-community.de/bat/poard/thread/13224: In function hide_all
            if (hide == table.battie_hidden)
  Line 1 of unknown script 
    void(hide_all(true));