title: Wordpress submit_button(); to a new page
body: <p>I have this code:</p>
  
  <pre><code>function my_main_function()
  {
      add_menu_page('MyNewPlugin', 'MyNewPlugin', 'manage_options', 'my_plugin_options', 'wps_theme_func');
  }
      add_action('admin_menu', 'my_main_function');
  
  
  function wps_theme_func()
  {
      echo '
          &lt;div class="wrap"&gt;
              &lt;div id="icon-options-general" class="icon32"&gt;&lt;br&gt;&lt;/div&gt;
              &lt;h2&gt;Main Page&lt;/h2&gt;
          &lt;/div&gt;
      ';  
  
      submit_button('Add data', 'secondary');
  }
  </code></pre>
  
  <p>How can I open a new page using the <strong>Add data</strong> button?</p>
  
  <p>The page should appear in the same place as the <strong>Main Page</strong>.</p>