Explained:
A frameset is a layout of frames. Each frame of a frameset is really a separate web page.
The frameset page controls and defines the layout of all the frames on that page.
Yet, each frame is a page unto itself.
ex. 3 frame layout:
| nav. | logo |
| content |
Here we have 4 pages:
1. Nav page
2. logo page
3. content page
4. and a frameset page controlling the settings of all three of the visible
sections
What's great about frames is that you can keep one section of your layout the same, like navigation on the left, while changing out the content page on the right. This means that your navigation will not need to refresh with every click you make.
So think about what areas of your site do not change from page to page and put those in their own frames.