====== < block > ======
===== Description =====
The < block > element specifies a block of directives to be executed in the order given.
===== Syntax =====
child elements
===== Attributes =====
|name|This is the name of the block that can be referred within the form. This is optional and defaults to an inaccessible internal variable.|
|expr|This attribute indicates the initial value of the block. The block will be visited only if the expression evaluates to “undefined.” This is optional and defaults to undefined.|
|cond|This attribute is a Boolean condition that must evaluate to “true” in order for this block to be visited. This is optional and defaults to true.|
===== Parents =====
===== Children =====
,