anchor.diff:      <meta name="viewport" content="width=device-width, initial-scale=1">
   	</head>
   <%
  +
   
     boolean username_validation_error = false;
     boolean duplicate_invite_error = false;
  
positive.code: 
        <% } %>
  
        <% if (Group_utils.has_been_invited(logged_in_user_id, gid)) { %>
          <div>
            You have been invited to join this group.  Click on the button below to confirm joining
          </div>
  
negative.code:           </span>
      </div>
  
      <% if (is_a_member) { %>
        <div class="row">
          <label>Members:</label>
          <% for (java.util.Map.Entry<Integer, String> member : 
  