How to show automatically Login box on checkout page in woocommerce?

If user is not login in woocommerce on checkout page then checkout login option will automatically enable to login.

Login with checkout page login option in woocommerce

function show_login_option(){

 $slug = basename(get_permalink());

 if($slug=='checkout'){
if ( is_user_logged_in() ) {

// echo '<script>alert("your are login");</script>';

} else {
 ?>
 <script>
jQuery(document).ready(function($) {
  $(window).load(function() {

$('.showlogin').click();
//alert('hello');


});
});

  </script>

  <?php
}
}
}
add_action('wp_head','show_login_option');