jquery easyui表单验证实例学习

<div style="background:#fafafa;padding:10px;width:300px;height:300px;"> 
    <form id="ff" method="post"> 
        <div> 
            <label for="name">Name:</label> 
            <input class="easyui-validatebox" type="text" name="name" required="true"></input> 
        </div> 
        <div> 
            <label for="email">Email:</label> 
            <input class="easyui-validatebox" type="text" name="email" required="true" validType="email"></input> 
        </div> 
        <div> 
            <label for="subject">Subject:</label> 
            <input class="easyui-validatebox" type="text" name="subject" required="true"></input> 
        </div> 
        <div> 
            <label for="message">Message:</label> 
            <textarea name="message" style="height:60px;"></textarea> 
        </div> 
        <div> 
            <input type="submit" value="Submit"> 
        </div> 
    </form> 
</div> 

$('#ff').form({ 
    url:'/demo7/ProcessServlet', 
    onSubmit:function(){ 
        return $(this).form('validate'); 
    }, 
    success:function(data){ 
        alert(data); 
    } 
});