Patent ID: 8130206

Claim:
An apparatus comprising: a processor connected with a memory that stores computer program instructions; and a touch sensitive display comprising a first portion and a second portion; the processor configured with the memory to execute the computer program instructions to detect user inputs on the touch sensitive display and control the touch sensitive display, the processor controlling the touch sensitive display in part by displaying in the first portion indications corresponding to individual functions of a first set of user-selectable functions and displaying in the second portion indications corresponding to individual functions of a second set of user-selectable functions, wherein the processor is configured to control the touch sensitive display, to enable a first state, in which the first portion of the touch sensitive display is operable to enable access to the first set of user selectable functions and the second portion of the touch sensitive display is operable to enable access to the second set of user-selectable functions, and to enable, in response to the detection of a first user input when the touch sensitive display is in the first state, a second state in which a sub-portion of the second portion of the touch sensitive display is not operable to enable access to any one of the second set of user-selectable functions located within the sub-portion and the first portion is operable to enable access to the first set of user-selectable functions, where the processor is further configured, when enabling the second state of the touch sensitive display, to continue to display in the second portion of the touch sensitive display the indications corresponding to the individual functions of the second set of user-selectable functions, where the indications corresponding to the individual functions of the second set of user-selectable functions that are located within the sub-portion are displayed in a predetermined manner that informs a user that the individual functions of the second set of user-selectable functions that are located within the sub-portion are locked from use by the user, wherein the first user input comprises a trace from a first position on the touch sensitive display to a second position on the touch sensitive display and a size of the sub-portion is based on the first position and the second position.