…background (will run from the test suite). Supplements #9823.
…n IE from the support testElement. Fixes #9823.
…malizes attribute behaviors across browsers, is less hacky, and shortens the attribute code. Fixes #9980.
…ack-compat reasons. Fixes #9979.
…is check prevents an error from occurring when the width() or height() methods are called before the body is defined in browsers that return false on the first condition and proceed on to the second. For example, simply calling $( window ).width() from a script in the HEAD will throw an error in Nokia webkit browsers without this check in place.