aFarkas/html5shiv — comment on commit cee53872509ee9aafad04ddaca8117ac72ba3b23
File: src/html5shiv-printless.js line 41
By jdalton:

`ownerDocument` is cross-browser and may be more stable... I mean IE also has `parentElement`, as an alternative to `parentNode` but peeps don't really use it :P. Also `ownerDocument` may not, *haven't checked*, error when you reference it like `element.document`.