First of all, you're confusing Java and JavaScript, which are about as unrelated as languages can get. I (and I'm sure others) would appreciate a more descriptive thread title.
Secondly, you can always give Firefox a try:
Get Firefox
Note that this URL auto-redirects you to the right part of Mozilla's site.
If that fails, you may have run into a web site that depends on some part of MSIE (Microsoft Internet Explorer), in which case you'll have to resort to one of the following options:
- Running Windows in Boot Camp
- Running Windows in a virtual machine
- Simulating enough of Windows to run MSIE, via Wine