Created to go with the Bone Marrow requisition. Has a new changeAndCheck function. This "toggles" the "required" attribute of a text field that follows an X box ( when the Xbox is checked or unchecked ) and reports on the validity of the text field (is the required field filled?). It requires that the diad be named after the fashion "AnXbox" and "AnXbox_Text" to work. It is designed to be used multiple times in an eForm to simplify and decrease coding.