Javascript problem Fedora 16

[Roger]

>>>     I do hope someone can help me here.
>>>     I am learning Ruby on Rails.
>>>     It requires javascript to be installed for both Firefox and Chromium
>>>     browsers.
>>>     Following the instructions at
>>>     [1]http://www.java.com/en/download/help/linux_x64rpm_install.xml
>>>     jre installed,
>>>     made link sudo ln -s
>>>     /usr/java/jre1.6.0_07/plugin/i386/ns7/libjavaplugin_oji.so
>>>     /usr/lib/mozilla/plugins/libjavaplugin.so
>>>     Restarted firefox but it does not find jre.
>>>     I have <Enable Javascript> enabled in preferences.
>>>     Still get  Ruby on Rails ExecJS::RuntimeError.
>>>     Can someone instruct me in what to do to get jre working on firefox and
>>>     Chromium in Fedora 16 please.
>>>     I have also installed as per instructions at:
>>>     [2]http://www.java.com/en/download/help/linux_x64_install.xml This also
>>>     fails, it appears to be only an upgrade.
>>>     Thanks in advance
>>>     Roger
>>>
>> Hi Roger,
>>
>> Have you tried using OpenJDK that is available in Fedora? It has a fully
>> functional Web browser plugin (via icedtea-web package) that works with
>> Firefox and Chrome out of the box.
>>
>> What document are you using for install instructions by the way?
>>
>>
Hi Deepak and Reindl
Thanks for the openjdk suggestion. I installed but neither Firefox nor 
Chromium see it.
I'm still stuck.
Are there any other recommendations I can look into please
Thanks
Roger