16. A computer-readable storage device having computer-executable instructions for validating access to a first element within a group of related elements, comprising: associating a security context with each element within the group of related elements, each element being associated with a markup domain; verifying access to the first element when the security context associated with the first element permits access to the first element; validating access to the first element when the security context associated with the first element permits access to the first element; invalidating access to the first element when the security context associated with the first element does not permit access to the first element; and modifying a security context associated with a second element in response to navigating a markup page associated with the first element; wherein the markup page is navigated from a first domain to a second domain.
16. A computer-readable storage device having computer-executable instructions for validating access to a first element within a group of related elements, comprising: associating a security context with each element within the group of related elements, each element being associated with a markup domain; verifying access to the first element when the security context associated with the first element permits access to the first element; validating access to the first element when the security context associated with the first element permits access to the first element; invalidating access to the first element when the security context associated with the first element does not permit access to the first element; and modifying a security context associated with a second element in response to navigating a markup page associated with the first element; wherein the markup page is navigated from a first domain to a second domain. 17. The computer-readable storage device of claim 16 , wherein invalidating access further comprises disabling a call to the first element.