made the hack a bit less hacky

templates/courses.html

@@ -56,11 +56,11 @@
 		</ul>
 	</div></div>
 </div>
+{% endfor %}
 <div class="visible-xs" id="xs-check"></div>
 <script>
 if($("#xs-check").is(":visible")) {
 	$("#zeitlos").removeClass('in')
 }
 </script>
-{% endfor %}
 {% endblock %}