Animated GIF A GIF image that has simple animation. While these images make sense visually, to a computer and any transformation tool or access aid they are simply a sequence of characters rather than a true image, and are presented to users literally in that form. A program that allows people to create Web pages. Some authoring tools allow users to see how the page looks as they develop it, while others focus on editing the source code directly, giving precise control. Client-side Functionality that exists on the user's machine rather than handled by the server .
D link An informal standard for associating image descriptions with images.
A table that is used to present data in a tabular or spreadsheet format. This contrasts with a layout table that uses the same construct for a different purpose. This allows browsers to understand how to interpret the elements in the page. Dynamic content may change over time or in response to user actions. For example, images that change when the user moves the mouse over them are dynamic.