bodyChild
LTR
elm
elm.offsetParent.scrollLeft:
bidi.getScrollLeft(...):
bidi.getOffsetStart(...):
goog.style.bidi.setScrollOffset: set








RTL
elm
elm.offsetParent.scrollLeft:
bidi.getScrollLeft(...):
bidi.getOffsetStart(...):
goog.style.setScrollOffset: set








INNER