我有一个带有复选框的表单，它分为多个组，带有一个单选按钮组以全选和不选。复选框标签将获得一个附加到它们的类（用于 css 使其成为图像）。我遇到的问题是脚本在条件语句中循环回到自身，我一直在努力解决这个问题。
我用这里的代码创建了一个 JSFiddle 页面http://jsfiddle.net/jaread83/V5SSM/
我想要它做什么：
单击 SelectAll，所有复选框标签都获得“c_on”类，并且所有复选框都被选中。
单击 SelectNone，所有复选框标签都删除了“c_on”类，并且所有复选框输入都未选中。
单击 section_label 时，该部分中的所有复选框标签都将获得“c_on”并选中，然后在未选中时删除选中状态并仅从该部分中删除“c_on”类。
当单击不是 section_label 的单个复选框标签时，该单个项目标签会添加“c_on”类，并且复选框会获得选中状态。
的HTML：
<div class="form">
<div class="document">
<div class="section inline">
<label class="label_radio lightblue" id="selectAllButton" for="selectAll">
<input type="radio" name="masscheck" id="selectAll" />Select all</label>
</div>
<div class="section inline">
<label class="label_radio lightblue" id="selectNoneButton" for="selectNone">
<input type="radio" name="masscheck" id="selectNone" />Select none</label>
</div>
<div class="clear"></div>
</div>
<div class="document">
<div class="section">
<label class="label_check section_label blue" for="docs_1131">
<input type="checkbox" id="docs_1131" name="docs" value="1131" />Title page</label>
</div>
</div>
<div class="document">
<div class="section">
<label class="label_check section_label blue" for="docs_1118">
<input type="checkbox" id="docs_1118" name="docs" value="1118" />
Section 1
</label>
<blockquote>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1119">
<input type="checkbox" id="docs_1119" name="docs" value="1119" />
Subsection 1.1
</label>
</div>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1120">
<input type="checkbox" id="docs_1120" name="docs" value="1120" />
Subsection 1.2
</label>
</div>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1121">
<input type="checkbox" id="docs_1121" name="docs" value="1121" />
Subsection 1.3
</label>
</div>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1122">
<input type="checkbox" id="docs_1122" name="docs" value="1122" />
Subsection 1.4
</label>
</div>
</blockquote>
</div>
</div>
<div class="document">
<div class="section">
<label class="label_check section_label blue" for="docs_1123">
<input type="checkbox" id="docs_1123" name="docs" value="1123" />
Section 2
</label>
<blockquote>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1124">
<input type="checkbox" id="docs_1124" name="docs" value="1124" />
Subsection 2.1
</label>
</div>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1125">
<input type="checkbox" id="docs_1125" name="docs" value="1125" />
Subsection 2.2
</label>
</div>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1126">
<input type="checkbox" id="docs_1126" name="docs" value="1126" />
Subsection 2.3
</label>
</div>
<div class="subsection">
<label class="label_check sub_label lightblue" for="docs_1127">
<input type="checkbox" id="docs_1127" name="docs" value="1127" />
Subsection 2.4
</label>
</div>
</blockquote>
</div>
</div>
<button type="submit" class="icon icon-arrow-white">Submit</button>
JS：
jQuery(document).ready(function($) {
//check all and checknone
$('#selectAll').click(function() {
var selectAllButton = $('#selectAllButton');
var selectNoneButton = $('#selectNoneButton');
var checkboxes = $(this).closest('form').find(':checkbox');
var checklabels = $('.label_check');
checkboxes.attr('checked', true);
checklabels.addClass('c_on');
selectAllButton.addClass('c_on');
selectNoneButton.removeClass('c_on');
});
$('#selectNone').click(function() {
var selectAllButton = $('#selectAllButton');
var selectNoneButton = $('#selectNoneButton');
var checkboxes = $(this).closest('form').find(':checkbox');
var checklabels = $('.label_check');
checkboxes.attr('checked', false);
checklabels.removeClass('c_on');
selectNoneButton.addClass('c_on');
selectAllButton.removeClass('c_on');
});
//check all within section
$('.section .section_label').click(function(){
var p = $(this).parent();
if($(this).hasClass('c_on')){
// remove the checkbox classes on sub sections
p.find('.subsection').find('label').removeClass('c_on');
// remove the class from the thing we have clicked
$(this).removeClass('c_on');
} else {
p.find('.subsection').find('label').addClass('c_on');
$(this).addClass('c_on');
}
});
});
对此的任何帮助将不胜感激。