Index A abbrev element, 29 accel element, 31 accessibility, 10 acronym element, 29 adding attributes, 68 adding elements, 67­68 address element, 26 effectivity, 78, 515 elements, referencing, 71 removing, 66­67 semantics, 72 title, 9 version, 9 attribution element, 28 author element, 21