courses and challenges small improvements

rowers/templates/virtualevents.html

@@ -67,12 +67,19 @@
     <p>
       <input name='form' class='green button' type='submit' value="Submit">
     </form>
-</p>
+  </p>
+</li>
 <li class="grid_4">
   <p>Click on the challenge name or on the Details button to see the challenge
     details (and manage your participation and results). Click on the
     course name to see the course details.
   </p>
+  {% if location %}
+  <p>
+    <a href="/rowers/virtualevents/?nearby=true">Challenges in your area</a>
+    <a href="/rowers/virtualevents/">All Challenges</a>
+  </p>
+  {% endif %}
 </li>
 
   <li class="grid_4" id="racelist">