PDF (adobe.com)

Deciding whether to use frames

The most common use of frames is for navigation. A set of frames often includes one frame containing a navigation bar and another frame to display the main content pages.

In many cases, you can create a web page without frames that accomplishes the same goals as a set of frames. For example, if you want a navigation bar to appear on the left side of your page, you can either replace your page with a set of frames, or just include the navigation bar on every page in your site. (Dreamweaver helps you create multiple pages that use the same layout.) The following example shows a page design with a framelike layout that doesn’t use frames.

View full size graphic

Poorly designed sites use frames unnecessarily, such as a frameset that reloads the contents of the navigation frames every time the visitor clicks a navigation button. When frames are used well (for example, to keep navigation controls static in one frame while allowing the contents of another frame to change), they can be very useful for a site.

Not all browsers provide good frame support, and frames may be difficult for visitors with disabilities to navigate, so if you do use frames, always provide a noframes section in your frameset, for visitors who can’t view them. You might also provide an explicit link to a frameless version of the site.

Advantages to using frames:

  • A visitor’s browser doesn’t need to reload the navigation-related graphics for every page.

  • Each frame has its own scroll bar (if the content is too large to fit in a window), so a visitor can scroll the frames independently. For example, a visitor who scrolls to the bottom of a long page of content in a frame doesn’t need to scroll back up to the top to use the navigation bar if the navigation bar is in a different frame.

    Disadvantages to using frames:

  • Precise graphical alignment of elements in different frames can be difficult.

  • Testing the navigation can be time-consuming.

  • The URLs of the individual framed pages don’t appear in browsers, so it can be difficult for a visitor to bookmark a specific page (unless you provide server code that enables them to load a framed version of a particular page).