Assign the result of a multiple-selection form submission to a hidden form in EmpireCMS.

In Empire CMS, if you need to implement a multiple-selection feature—such as a multi-select regional search—you must concatenate all the forms generated after the regional selection process and then pass them to the `keyboard` field. For this purpose, the following code can be used:

HTML code snippet:

<label class="area-box-listhover">
    <input class="inputcheckbox" type="checkbox" name="address[]" value="安徽">
    <span class="area-box-name">安徽</span>
</label>
<label class="area-box-listhover">
    <input class="inputcheckbox" type="checkbox" name="address[]" value="澳门">
    <span class="area-box-name">澳门</span>
</label>
<label class="area-box-listhover">
    <input class="inputcheckbox" type="checkbox" name="address[]" value="重庆">
    <span class="area-box-name">重庆</span>
</label>
<label class="area-box-listhover">
    <input class="inputcheckbox" type="checkbox" name="address[]" value="福建">
    <span class="area-box-name">福建</span>
</label>
<label class="area-box-listhover">
    <input class="inputcheckbox" type="checkbox" name="address[]" value="广东">
    <span class="area-box-name">广东</span>
</label>

<input id="hadd" type="hidden" name="keyboard[]"  >

jQuery code:

$(document).ready(function() {
	$('input[name="address[]"]').change(function() {
		// 获取选中的复选框的值
		var address = $('input[name="address[]"]:checked').map(function() {
		return $(this).val();
		}).get().join(' '); // 将选中的复选框的值拼接成字符串，以空格隔开

		// 设置隐藏域的值
		$('input[id="hadd"]').val(address);
	});
	});