gluon-packages/gluon/gluon-config-mode/files/usr/lib/lua/luci/view/freifunk-wizard/nav.htm

<%
        local nav = require "luci.tools.freifunk-wizard.nav"
        local predecessor, successor = nav.get()
%>

<div class="actions">

<% if successor then %>
  <a class="btn primary" href="<%=luci.dispatcher.build_url("wizard", successor.href)%>">Weiter</a>
<% end %>

<% if predecessor then %>
  <a class="btn" href="<%=luci.dispatcher.build_url("wizard", predecessor.href)%>">Zurück</a>
<% end %>
</div>