Error causes and solutions when form.submit() cannot submit the form_javascript skills

<div id="register">

<h4>会员注册</h4>

<div class="formdiv">

<form method="post" action="register.php&#63;action=register" name="register" id="registerForm">

<dl>

<dt>请认真填写以下内容</dt>

<dd class="hasspan">

用户名：<input type="text" name="username">

</dd>

<dd class="hasspan">

密码：<input type="password" name="pwd">

</dd>

<dd class="hasspan">

确认密码：<input type="password" name="pwdagain">

</dd>

<dd id="tximg">

<img src="img/face/m01.gif" alt="选择头像" id="faceimg">

<input type="hidden" name="touxiang" value="">

<label id="imgsrclabel">m01.gif</label>

</dd>

<dd style="margin-right:120px;">

验证码：<input type="text" name="code">

<span>

<img src="code.php" alt="code" id="code" name="code">

<a href="#code" id="change">换一张</a>

</span>

</dd>

<dd class="btns">

<input type="button" name="submit" id="submit" value="注册">

<input type="button" name="quit" id="quit" value="退出">

</dd>

</dl>

</form>

</div>

</div>

表单数据提交到本页面，下面是js处理

/*注册表单提交*/

function formDeal()

{

var btnSubmit = document.getElementById('submit');

var formId = document.getElementById('registerForm');

btnSubmit.onclick = function()

{

//表单的submit()方法不能提交表单

formId.submit();

}


}

如果表单提交，在本页面有一段提示信息

if(!empty($_GET['action']) && $_GET['action'] == 'register')

{

echo '你提交了数据';

exit();

}