jsTree树控件(基于jQuery, 超强悍)[推荐]
jsTree是基于javascript的一个跨浏览器树控件，功能强大，而且是免费的。
1、支持基于HTML定义、Json、XML方式加载树节点
2、支持拖放，动态增加、删除、重命名树节点
3、支持复选框
4、支持复制、剪切、粘贴树节点，动态刷新树
5、提供足够的回调方法：
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??????? jsTree is a javascript based, cross browser tree component. It uses jQuery and Sarissa (optionally). jsTree is absolutely free (licensed same as jQuery - under both GPL and MIT - whichever suits your needs).
Currently supported browsers are: Internet Explorer 6 +, Mozilla Firefox, Safari 3, Opera 9+, Google Chrome. The latter three are not thoroughly tested. jsTree may also work with other browsers - please drop me a note if you performed some tests.
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Key features
