jQuery实现根据类型自动显示和隐藏表单

jquery实现表单根据单选按钮进行字段的动画切换，昨天写的，感觉比起初学时写的js/jquery有了很大进步。。在最大化扩展性的情况下经可能使代码精简。

html

代码如下:
<div class="control-group">
                    <label class="control-label">类型：</label>
                    <div class="controls control-row-auto" id="type">
                    </div>
                    <span class="auxiliary-text"></span>
                </div>
                <div class="control-group ctype ctype1 ctype2">
                    <label class="control-label">栏目模版：</label>
                    <div class="controls">
                        <select name="column_tpl" class="input">
                        </select>
                    </div>
                    <span class="auxiliary-text"></span>
                </div>
                <div class="control-group ctype ctype1">
                    <label class="control-label">文章模版：</label>
                    <div class="controls">
                        <select name="article_tpl" class="input">
                        </select>