Any idea how dis form is being submit

Question

der is website on which i can see the login form but cant see any ajax call..

but i know dat its a php page..

one more thing,, when i ctrl+f5 this page it does not resend..

that means the login pages does not contain the post code also..

I want to know how the form is getting submitted 

 

<section class="loginForm">

<form method="post" action="" role="login">

<!--<img src="" class="img-responsive" alt="" />-->

<input type="email" name="email" placeholder="Email" required class="form-control input-lg" value="" />

<input type="password" name="password" class="form-control input-lg" id="password" placeholder="Password" required />

<!--<div class="pwstrength_viewport_progress"></div> -->

<button type="submit" name="go" class="btn btn-lg btn-info btn-block btnactive">Login</button>

<div>

<a href="register">Create account</a> or <a href="#">reset password</a>

</div>

</form>

</section>