<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>약관동의</title>
<script type="text/javascript">
window.onload = function () {
var chks = document.querySelectorAll("input[name=chk]");
var cllchkbox = document.getElementById("allChk");
cllchkbox.onclick = function () {
if (this.checked) {
for (var i = 0; i < chks.length; i++) {
chks[i].checked = true;
}
} else {
for (var i = 0; i < chks.length; i++) {
chks[i].checked = false;
}
}
}
function chkclick() {
var chkarr = chks;
var chkcnt = 0;
for (var i = 0; i < chkarr.length; i++) {
if (chkarr[i].checked) { chkcnt++; }
}
if (chkarr.length == chkcnt) {
cllchkbox.checked = true;
} else {
cllchkbox.checked = false;
}
}
for (var i = 0; i < chks.length; i++) {
var elm = chks[i];
elm.onclick = function () {
chkclick();
}
}
}
</script>
</head>
<body>
<form id="form1">
<label><input type="checkbox" id="allChk" />모든 약관동의</label>
<div>약관1</div>
<label><input type="checkbox" name="chk" /> 동의합니다.</label>
<div>약관2</div>
<label><input type="checkbox" name="chk" /> 동의합니다.</label>
<div>약관3</div>
<label><input type="checkbox" name="chk" /> 동의합니다.</label>
</form>
</body>
</html>
18. 8. 27.
약관동의(Javascript)
querySelectorAll 가 IE 8 부터 사용가능하기 때문에 8부터 적용가능
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