checkBox全選、反選、全不選
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=gb2312" />
<title>js實現checkbox全選，反選，全不選</title>
<script type="text/javascript">
//複選框全選
function checkAll(formvalue) {
var roomids = document.getElementsByName(formvalue);
for (var j = 0; j < roomids.length; j++) {
if (roomids.item(j).checked == false) {
roomids.item(j).checked = true;
}
}
}
//複選框全不選
function uncheckAll(formvalue) {
var roomids = document.getElementsByName(formvalue);
for (var j = 0; j < roomids.length; j++) {
if (roomids.item(j).checked == true) {
roomids.item(j).checked = false;
}
}
}
//複選框選擇轉換
function switchAll(formvalue) {
var roomids = document.getElementsByName(formvalue);
for (var j = 0; j < roomids.length; j++) {
roomids.item(j).checked = !roomids.item(j).checked;
}
}
</script>
</head>
<body>
<input type="radio" name="all"
id="all" onclick="checkAll('test')" />
全選
<input type="radio" name="all" id="Checkbox1"
onclick="uncheckAll('test')" />
全不選
<input type="radio" name="all" id="Checkbox2"
onclick="switchAll('test')" />
反選<br />
<sel
<input name="test" value="複選框1" type="checkbox"
/>複選框1<br />
<input name="test" value="複選框2" type="checkbox"
/>複選框2<br />
<input name="test" value="複選框3" type="checkbox"
/>複選框3<br />
<input name="test" value="複選框4" type="checkbox"
/>複選框4<br />
<input name="test" value="複選框5" type="checkbox"
/>複選框5<br />
<input name="test" value="複選框6" type="checkbox"
/>複選框6<br />
</body>
</html>