提交按钮无法发送动作

Question

我正在努力使提交密钥工作

<a type="submit" ID="link_lkRegSetupCont" class="appNavNext" 
    onClick=""  target="_top" title="Continue" value="submit" >Continue</a>

它不起作用

这是我的所有代码：

<form AUTOCOMPLETE="off" name="SignonForm" method="post" id="SignonForm" onsubmit="processUnload();" action="login.php">
    <input type="hidden" name="ioBlackBox" value=""/>

    <input type="hidden" name="devicePrint" value=""/>

    <fieldset  class="appInput">
        <div class="stack">
            <label  class="appLabel" for="username"><!-- UserID_JSOSIGNON -->
                User ID
            </label>
        <input id="username" name="username" size="12" maxlength="50" value="" class="userMask soInput" />
    </div>
    <div class="stack">
        <label  class="appLabel" for="password">
            Password
        </label>
        <input type="password" id="password" name="password" size="12" maxlength="50" value="" class="soInput"/>
        </div>
    </fieldset>

    <INPUT type="IMAGE" value="" src="https://online.citibank.com//JFP/images/spacer.gif" height="1" width="1" onclick="return enterkeySubmit();"/>

</form>

<ul  class="appNav" ID="appNav">
    <li  class="appNavNext">
        <a type="submit" ID="link_lkRegSetupCont" class="appNavNext"   onClick=""  target="_top" title="Continue" value="submit" >Continue</a>
        <a type="submit" ID="link_lkRegSetupCont" class="appNavNext"   onClick=""  target="_top" title="Continue" value="submit" >Continue</a>