It also makes the information available to search engines. One example of a non-text equivalent is an auditory description of the key visual elements of a presentation. The auditory description is synchronized with the audio track of the presentation, usually during natural pauses in the audio track. Auditory descriptions include information about actions, body language, graphics, and scene changes. Image A graphical presentation.
Image map An image that has been divided into regions with associated actions.
Clicking on an active region causes an action to occur. When a user clicks on an active region of a client-side image map, the user agent calculates in which region the click occurred and follows the link associated with that region. Clicking on an active region of a server-side image map causes the coordinates of the click to be sent to a server, which then performs some action. Client-side image maps allow the user agent to provide immediate feedback as to whether or not the user's pointer is over an active region. Important Information in a document is important if understanding that information is crucial to understanding the document.