有关javascript 获取checkbox复选框的实例数不胜数，下面的这个示例，纯js实现的
var form = document.getElementById("form2");
var field = form.elements["test2"];
var option = Dining.getSelectedOption(form, field);
var message = "";
for (var i = 0, len = option.length; i < len; i++) {
message += "Select id:" + option[i].id + "nSelected name:" + option[i].name + "nSelected value:" + option[i].value + "nn";
}
alert(message);
getSelectedOption: function (selectform, selectionfield) {
var result = [];
var option = null;
for (var i = 0; i < selectionfield.length; i++) {
option = selectionfield[i];
if (option.checked) {
result.push(option);
}
}
return result;
}
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