optgroup Attributs: class CDATA-LIST [4.01] dir "ltr"|"rtl" [4.01] disabled disabled [4.01, 5] id NAME [4.01] label TEXT [4.01, 5] lang "en-US"|"fr-CA"|... [4.01] on... SCRIPT onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmouseout, onkeypress, onkeydown, onkeyup [4.01] style STYLE [4.01] title TEXT [4.01] Javascript: HTMLOptGroupElement Liens: HTML 4.01 OPTGROUP HTML 5 OPTGROUP