Iain Row of Beyond Caffeine has summarised 7 Reasons You Should Avoid JavaScript Dynamic Navigation .
Reasons are:
- Site navigation is difficult when navigation is not permanently displayed.
- Embedded elements can clash with dynamic navigation
- Cross browser/platform compatibility issues
- Usability issues- Dynamic Navigation is not for everyone
- The Experts don’t do it
- You have plenty of other options
- Your site will be broken if JavaScript is turned off!