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This module allows you to mark form fields to be dependent of another form field. Using #dependency you can provide an array to point to the field that needs a value before the field with setting #dependency will be displayed. The naming of the array should be the same as the way you would fill an element's #parents array. For example, an input with name="author[uid]" needs to be pointed like array('author', 'uid'). Any requirements of the dependency field is also handled correctly and only throws an error when the field is required by both the dependency and the #required setting.

Javascript implementation helps with collapsing/expanding the neirest <div class="form-item"> when the field is not required.

This module provides the basic functionality for the webform_dependencies module that allows for dependency for webform components.

This module's development is sponsored by Dutch green political party GroenLinks.

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