Credit: Mulchaey et al (ST Sci/UMD/NASA)
An impressive use of frames occurs when you link
two or more frames on the same page so that clicking on a region
in one frame activates an image in an adjacent frame
on the same page. A typical example is a low resolution image in one
frame which activates high resolution zoom images in an adjacent frame.
For example, in the left frame you might
have a map of a city, such as Seattle. Clicking on the North end in the
left frame fills the right frame with a higher resolution view of the
North end of Seattle; clicking in the middle of the left frame fills
the right frame with a higher resolution view of central Seattle, and so on.
We illustrate this with the same clickable map used in the
section on Clickable Image Maps, but instead of activating text on
a subsequent page, it activates images which appear in an adjacent frame
on the same page. The clickable image resides in the left frame and the
selected images appear in the right frame.
There are at least three ways to create clickable image maps with frames:
