Certain Javascript Not Working in All Browsers

Question

Certain javascript elements on websites won't function at all, and it's not apparent why. For example, when I'm http://www.reddit.com/ and I try to upvote or downvote a submission, nothing will happen, and little text in the bottom left corner of my browser(s) will say, "javascript:void(0)". This problem also occurs when I try to submit a comment, expand comments, send messages, and so on.
This issue isn't exclusive to reddit, though. It also occurs when I'm on http://www.tinychat.com/. When I attempt to go into a tinychat room the same "javascript:void(0)" message pops up, and I receive this error message instead of it loading the chat room, which reads, "This chat room is not loading. Hold shift and refresh this page to try again. You may need to update your browser or Adobe Flash Player. Tinychat recommends Google Chrome. If this issue continues, please email [email protected]" I did email them, and they never emailed me back.
I've tried everything from uninstalling and reinstalling Flash. Removing javascript from webpages, and seeing if they would respond differently. I've tried disabling and enabling popup blockers, allowing and disallowing Java content, deleting cache, deleting Java cache, removing all proxy settings, allowing all third-party content, increasing my cache size for Adobe flash, uninstalling and reinstalling Adobe flash player and shockwave. I've used disk utility and repaired all permissions and disk issues, I've used OnyX and deleted all cache files and restored as much back to default settings as physically possible. I've even reformatted my entire computer with the startup discs, and the problem still exists. I contacted Java support, Adobe support, and called Apple support, all ending in no solution.
My computer specifications:
MacBook Pro (15-inch Mid 2010)
2.4 GHz Intel Core i5
4 GB 1067 MHz DDR3
NVIDIA GeForce GT 330M 256 MB
Mac OS X Lion 10.7.4

Answer 1

The pages use JavaScript links such as:
<a href="javascript:void(0)" class="pref-lang" onclick="return showlang();" >English</a>
These are quite common and work OK on my Safari 5.0.6.
The problem you have could be one of these:
JavaScript is disabled in your browser
Your browser's JavaScript engine is damaged
JavaScript items have not downloaded properly
You have restricted cookies
You are behind a firewall limiting access to the internet
Try the following:
Disable all Safari plugins/extensions
Quit from Safari
Remove all contents of ~/Library/Safari to a new folder on your Desktop
Restart Safari and test
Retrieve your bookmarks from the new folder on your Desktop
The following command can resolve some issues - paste it into a Terminal window and hit the return key:
rm -Rf ~/Library/Safari/LocalStorage; rm -Rf ~/Library/Caches/com.apple.Safari