fungsi getElementLeft (element) {var actualLeft = element.offsetleft; var current = element.offsetParent; while (current! == null) {aktualLeft += current.offsetleft; Current = Current.OffsetParent; } kembalikan aktual; }Dapatkan offset kiri elemen;
function getElementTop (elemen) {var aktualtop = element.offsettop; var current = element.offsetParent; while (current! == null) {<span style = "white-space: pre"> </span> aktualtop += current.offsettop; Current = Current.OffsetParent; } return ActualTop; }Dapatkan offset atas elemen;
Gunakan properti offsetparent untuk melacak kembali langkah demi langkah di level DOM untuk meringkas offset setiap level.