这张表格有没有任何理由不提交？

Question

我有一个表格由于某种原因不提交。有没有特别的理由不提交？那就是：

<div id="formContainer"> 
<div id="formErrors"></div> 
<form id="centeredForm" action="?" method="post"> 
<p id="formTitle">Register</p> 
<table id="formTable"> 
<tr class="rowHover"><td class="hoverPad"> 
<label>Username</label> 
</td><td> 
<input type="text" class="formInput" name="username"> 
</td></tr> 
<tr class="rowHover"><td class="hoverPad"> 
<label>Email</label> 
</td><td> 
<input type="text" class="formInput" name="email"> 
</td></tr> 
<tr class="rowHover"><td class="hoverPad"> 
<label>Password</label> 
</td><td> 
<input type="password" class="formInput" name="password1"> 
</td></tr> 
<tr class="rowHover"><td class="hoverPad"> 
<label>Retype Password</label> 
</td><td> 
<input type="password" class="formInput" name="password2"> 
</td></tr> 
<tr class="rowHover"><td class="hoverPad"> 
<label>Alpha Code</label> 
</td><td> 
<input type="text" class="formInput" name="alphacode"> 
</td></tr> 
<tr><td> 
</td><td> 
<input type="hidden" value="TRUE" name="submitted"> 
</td></tr> 
<tr><td> 
</td><td class="rowHover" id="tosRow"> 
<input id="tosagreeCheck" type="checkbox" name="tosagree"> 
<label for="tosagreeCheck">I agree to the <a>Terms of Service</a></label> 
</td> 
</tr><tr> 
<td></td> 
<td> 
<input type="button" value="Sign Up" class="formBttn" name="submit"> 
</td></tr> 
</table> 
</form> 
</div> 

Answer 1

变化

<input type="button" value="Sign Up" class="formBttn" name="submit">

到

<input type="submit" value="Sign Up" class="formBttn" name="submit">