# How This Tag Library Document Is Organized

This TLD (Tag Library Descriptor) document has pages corresponding to the items in the navigation bar, described as follows.

### Overview

> The Overview page is the front page of this TLD document and provides a list of all tag libraries with a summary for each.

### Library

> Each tag library has a page that contains a list of its validator, listeners, tags, and functions, with a summary for each. This page can contain four categories:
> - Validator
> - Listeners
> - Tags
> - Functions

### Validator

> A tag library can have at most one validator. If a tag library has a validator, it has its own page describing the validator, the class that implements the validator, and the available initialization parameters.

### Listeners

> A tag library can have zero or more listeners. If a tag library has at least one listener, a page is generated that lists all listener classes registered for the tag library.

### Tags

> A tag library can have zero or more tags. Each tag has its own page that describes the tag, its display name, its unique action name, the class that implements the tag, the TagExtraInfo class, the body content type, scripting variable information, attributes, whether the tag supports dynamic attributes, and an optional example use of the tag.

### Functions

> A tag library can contain zero or more EL functions. If a tag library has at least one function, a page is generated that lists all functions, the class that implements the function, the function signature, and an optional example use of the function.

### Prev/Next

> These links take you to the next or previous validator, listener, tag, function, or related page.

### Frames/No Frames

> These links show and hide the HTML frames. All pages are available with or without frames.

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