This module allows to create a so called "#conditional #fields". I.e. a fields which appear only if a certain value is selected in another field.A very common example is a Gender specific fields. For example if for a Gender is...

This module allows to create a so called "#dependent #fields". I.e. a dropdown-like fields in which the available options depends on a selection in another field. A very common example is a Category->Subcategory. So when a...