<form name="form1" method="post" action="">
<input type="checkbox" name="mycheckbox" value="hello">
</form>
<script language="JavaScript">
alert(form1.mycheckbox.value)
var name="mycheckbox"
alert(form1.all(name).value)
alert(eval("form1." + name + ".value"))
</script>
if ( obj ) {
alert(obj.value);
alert(obj.checked);
}
资料吗?再次感谢