jQuery.validationEngine前端验证

引入相关文件：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.js" type="text/
javascript"></script>
<script src="js/jquery.validationEngine-en.js" type="text/javascript" charset="utf-8"></script>
<script src="js/jquery.validationEngine.js" type="text/javascript" charset="utf-8"></script>
<link rel="stylesheet" href="css/validationEngine.jquery.css" type="text/css"/>

使用实例：

邮箱验证：
<input value="someone@nowhere.com" class="validate[required,custom[email]]" type="text" name="email" id="email" />
日期验证：
<input value="2010-12-01" class="validate[required,custom[date]]" type="text" name="date" id="date" />
数字验证：
<input value="too many spaces obviously" class="validate[required,custom[onlyLetterNumber]]" type="text" name="special" id="special" />
URL验证：
<input value="http://" class="validate[required,custom[url]] text-input" type="text" name="url" id="url" data-prompt-position="topLeft" />
必填验证：
<input value="" class="validate[required] text-input" type="text" name="req" id="req" data-prompt-position="bottomLeft" />
数字字母验证：
<input value="too many spaces obviously" class="validate[required,custom[onlyLetterNumber]]" type="text" name="special" id="special" data-prompt-position="bottomRight" />
自定义验证：
<input value="" class="validate[required,funcCall[checkHELLO]]" type="text" id="lastname" name="lastname" />
function checkHELLO(){
   alert('Hello World!');  
}

AJAX验证：
<input value="" class="validate[required,custom[onlyLetterNumber],maxSize[20],ajax[ajaxUserCall]] text-input" type="text" name="user" id="user" />
"ajaxUserCall": {
    "url": "ajaxValidateFieldUser",
    "extraData": "name=eric",
    "extraDataDynamic": ['#user_id', '#user_email'],
    "alertText": "* This user is already taken",
    "alertTextOk": "All good!",
    "alertTextLoad": "* Validating, please wait"
},
多选验证：
<input class="validate[minCheckbox[2]]" type="checkbox" name="group1" id="maxcheck1" value="5"/>
<input class="validate[minCheckbox[2]]" type="checkbox" name="group1" id="maxcheck2" value="3"/>
<input class="validate[minCheckbox[2]]" type="checkbox" name="group1" id="maxcheck3" value="9"/>