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function jsChCheck(objName) {
$("input:checkbox[name='chkIdx']").each(function () {
this.checked = objName.checked;
});
}
<input type="button" name="chkIdx" onclick='jsChCheck(this)' />
<input type="checkbox" name="chkIdx" />
function jsChCheck(objName) { $("input:checkbox[name='chkIdx']").each(function () { this.checked = objName.checked; }); }
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