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Is it too lame to write like this?
var html = $('html');
Seems that html is equal to $(window) or $(document)?
How can it be replaced by a crossbrowser native javascript?
The top-level element (
htmlin the case of HTML documents) is available asdocument.documentElement(references: spec | MDN).And of course, if you want to use jQuery stuff on it, get a jQuery wrapper:
$(document.documentElement).In terms of cross-browser support, I’d be fairly shocked if you found anything even vaguely recent that didn’t support it (and that includes IE6), it was actually in DOM1, which was a long time ago. See this related question on that very topic.