login.html

<div><label for="phone">手机号</label> &lt;input type="text" class="form-control" id="phone" placeholder="手机号" onblur="checkPhone()"&gt; <div id="test_phone"></div> </div>&lt;!--/.form-group --&gt; <div class="form-group"> <label for="password">密码</label> &lt;input type="password" class="form-control" id="password" placeholder="密码" onblur="validate_password(this.value)"&gt; <div id="test_pw"></div>