At least in that example it's nothing to do with the input being focused - when the description says "(in IE)" it means "I wrote this only working with the IE event model and the IE DOM0 method for getting and setting selections in textinputs, not trying to be cross-browser" (quite possibly because selection in Moz didn't work all that well before 2003 - it's undated and who knows how old it is).
Status: UNCONFIRMED → RESOLVED
Last Resolved: 14 years ago
Resolution: --- → INVALID
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