【JavaScript】一次變更多個 CheckBox checked 值

<br />// sType:要改變的狀態, "Y":全部選取 "N":全部取消 "A":反向選取<br />function SelectAll(sType) {<br /> for (var i = 0; i < document.forms[0].elements.length; i++) {<br /> var e = document.forms[0].elements[i];<br /> if (e.type == 'checkbox') {<br /> switch (sType) {<br /> case 'Y': e.checked = true; break;<br /> case 'N': e.checked = false; break;<br /> case 'A': e.checked = !e.checked; break;<br /> default : e.checked = false; break;<br /> }<br /> }<br /> }<br />}<br />