title: input type submit not pass the process to action
body: <p>I'm trying to create 2 form stacking in 1 php code.
  But the form cannot submit at all. It just sit there without passing this form to action="..."</p>
  
  <p>Here the coding for first form (Registration)</p>
  
  <pre><code>&lt;form id="RegForm" class="form" action="PHP/Enter_New.php" method="post"&gt;
  &lt;!-- Progress Bar --&gt;
  &lt;ul id="ProgressBar"&gt;
      &lt;li class="active"&gt;Access Code&lt;/li&gt;
      &lt;li&gt;Account Setup&lt;/li&gt;
      &lt;li&gt;User Agreement&lt;/li&gt;
  &lt;/ul&gt;
  
  &lt;!-- Fieldsets --&gt;
  &lt;fieldset&gt;
      &lt;h2 class="fs-title"&gt;Are you lost?&lt;/h2&gt;
      &lt;h3 class="fs-subtitle"&gt;Get your access code before enter!!&lt;/h3&gt;
      &lt;input type="text" name="invite" class="invite field" placeholder="Access Code" onkeyup="checkAvAccess()" autocomplete='off' required /&gt;
      &lt;br /&gt;
          &lt;img src="/Images/Gif/Checking.gif" id="loaderIcon-access" style="display:none" /&gt;
          &lt;span id="availability-status-access"&gt;&lt;/span&gt;
      &lt;br /&gt;
      &lt;input type="button" name="login" class="action-button" id="toLog" value="Login" /&gt;
      &lt;input type="button" name="next" class="next action-button" id="access" value="Next" disabled="disabled" /&gt;
  &lt;/fieldset&gt;
  &lt;fieldset&gt;
      &lt;h2 class="title"&gt;Account setup&lt;/h2&gt;
      &lt;h3 class="subtitle"&gt;Login information&lt;/h3&gt;
      &lt;input type="text" name="username" class="username field" id="regUsername" placeholder="Username" onkeyup="checkAvReg()" autocomplete='off' /&gt;
          &lt;img src="/Images/Gif/Checking.gif" id="loaderIcon-reg" style="display:none" /&gt;
          &lt;span id="availability-status-reg"&gt;&lt;/span&gt;
  
      &lt;input type="password" name="password" class="password field" id="password" placeholder="Password" required /&gt;
          &lt;div class="pwstrength_viewport_progress"&gt;&lt;/div&gt;
      &lt;input type="button" name="previous" class="previous action-button" value="Previous" /&gt;
      &lt;input type="button" name="next" class="next action-button" id="logInfo" value="Next" disabled="disabled" /&gt;
  &lt;/fieldset&gt;
  &lt;fieldset&gt;
      &lt;h2 class="fs-title"&gt;User Agreement&lt;/h2&gt;
      &lt;h3 class="fs-subtitle"&gt;By signup at our website... &lt;/h3&gt;        
      &lt;input type="button" name="previous" class="previous action-button" value="Previous" /&gt;
      &lt;input type="submit" name="submit" class="submit action-button" id="subRegister" value="Submit" disabled="disabled"/&gt;
  &lt;/fieldset&gt;
  </code></pre>
  
  <p></p>
  
  <p>After registration form closing, there's no other code there.. The next code after that login code</p>
  
  <pre><code>&lt;form id="LoginForm" class="form" name="login" action="PHP/Redirrect_to.php" method="post"&gt;
  &lt;fieldset&gt;
      &lt;h2 class="fs-title"&gt;Enter Website&lt;/h2&gt;
      &lt;h3 class="fs-subtitle"&gt;Please login to continue!!&lt;/h3&gt;
      &lt;input type="text" name="username" class="username field" id="login" placeholder="Username" onkeyup="checkAvLogin()" autocomplete='off' required /&gt;
          &lt;img src="/Images/Gif/Checking.gif" id="loaderIcon-login" style="display:none"&gt;
          &lt;span id="availability-status-login"&gt;&lt;/span&gt;
      &lt;input type="password" name="password" class="password field" placeholder="Password" required /&gt;
          &lt;div class="pwstrength_viewport_progress"&gt;&lt;/div&gt;
      &lt;input type="button" name="register" class="action-button" id="toReg" value="Register" /&gt;
      &lt;input type="submit" name="submit" class="submit action-button" id="subLogin" value="Submit" formaction="PHP/Redirrect_to.php" formmethod="post" disabled="disabled" /&gt;
  &lt;/fieldset&gt;
  </code></pre>
  
  <p></p>
  
  <p>note that Disable on submit input will be remove by js after onkeyup=".." value = true</p>
  
  <p>The where you will see there's many next and previous because i'm using multistep form basic.  <a href="http://thecodeplayer.com/walkthrough/jquery-multi-step-form-with-progress-bar" rel="nofollow noreferrer">Here the original code</a>. I have remove return false value from js</p>