RTree

I recently came across an excellent navigation applet that allows you to create various types of menus, including trees, vertical, and horizontal menus. What sets this applet apart from the rest is its impressive Designer tool, which makes developing and testing a breeze. It's the perfect tool for those who may not have extensive HTML knowledge but still want to create polished, professional-looking menus.

Apart from being user-friendly, this navigation applet also supports Java script integration, which makes it a powerful tool for those who want more advanced functionality. Moreover, the source code is readily available, making it easy to customize and incorporate into existing projects.

Overall, I would highly recommend this navigation applet to anyone looking to create stunning and functional menus without breaking a sweat. Its impressive features and ease of use make it an exceptional addition to any developer's toolkit.