Whatever:hover is a small script that automatically patches :hover, :active and :focus for IE6, IE7 and IE8 quirks, letting you use them like you would in any other browser. Version 3 introduces ajax support, meaning that any html that gets inserted into the document via javascript will also trigger :hover, :active and :focus styles in IE.
JSONx is an IBM® standard format to represent JSON as XML. JSONx conversion rules specify how a DataPower® service converts a JSON structure to JSONx (XML).