>>774
書込み消えちゃった・・・

if (selectedTabs[selectedTabs.length - 1] == null){
newIndex = lastKnownIndex;
} else if (newIndex > selectedTabs[selectedTabs.length - 1]._tPos + 1)
newIndex--;
else if (newIndex >= selectedTabs[0]._tPos)
newIndex = -1;