Common attributes

Some tag attributes are used consistently across many tags:

Attribute Description

Attribute	Description
`id`	The `id` attribute is not always mandatory. If `id` is set (mandatory or not), it is used to name the scripting variable created by the tag, as well as the key value used to locate the bean in page scope. If `id` is not set the tag is replaced by its value.
name	The key value used to look up an existing bean in any scope.
property	Identifies a property of the bean identified by the `name` attribute which is to be used as an input parameter by the tag. If not specified, the bean identified by the `name` attribute is used as an input parameter.

id

The id attribute is not always mandatory.

If id is set (mandatory or not), it is used to name the scripting variable created by the tag, as well as the key value used to locate the bean in page scope.

If id is not set the tag is replaced by its value.

name

The key value used to look up an existing bean in any scope.

property

Identifies a property of the bean identified by the name attribute which is to be used as an input parameter by the tag. If not specified, the bean identified by the name attribute is used as an input parameter.