An apparatus includes a processing unit configured to determine, using a control application, a type of schema of a selected link. When the schema is of a first type, the control application causes processing associated with the selected link to be performed by a content display module. When the schema is of a second type, the control application causes processing associated with the selected link to be performed by a module different from the content display module. The processing unit can be configured to run an operating system, a control application, and a content display module, such that the control application is interposed between the operating system and the content display module. The control application can determine a type of schema of a selected link.