BrowserwidthoffsetWidthheightoffsetHeight
IE 7/8/9 28 28 30 30
FireFox 3.0/3.5/3.6/4..13 0 0 16 16
FireFox 2.0 / Safari / Chrome / iOS / Android  0 0 0 0

Note: If before and after load values are the same, please reload the page for accurate testing
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