Use the Set Nav Bar Image behavior to turn an image into a navigation bar image, or to change the display and actions of images in a navigation bar.
Use the Basic tab of the Set Nav Bar Image dialog box to create or update a navigation bar image, to change which URL is displayed when the user clicks a button in the navigation bar, and to select a different window in which to display a URL.
Use the Advanced tab of the Set Nav Bar Image dialog box to change the state of other images in a document based on the current button’s state. By default, clicking an element in a navigation bar automatically causes all other elements in the navigation bar to return to their Up states; use the Advanced tab if you want to set a different state for an image when the selected image is in its Down or Over state.
Select Down Image if you want to change the display of another image after a user has clicked the selected image.
Select Over Image or Over While Down Image if you want to change the display of another image when the pointer is over the selected image.