title: How do I create a Magento Helper when overriding an existing module router
body: <p>I have overridden the 'customer' frontname in order to make my custom module pages display as /customer/my-page-action/. When I do that my Helper class cannot be found:</p>
  
  <pre><code>Warning: include(Mage/FranchiseSelect/Helper/Data.php): failed to open stream: No such file or directory
  </code></pre>
  
  <p>Here's my extension config:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;config&gt;
    &lt;modules&gt;
      &lt;Rhino_FranchiseSelect&gt;
        &lt;active&gt;true&lt;/active&gt;
        &lt;codePool&gt;local&lt;/codePool&gt;
      &lt;/Rhino_FranchiseSelect&gt;
    &lt;/modules&gt;
  &lt;/config&gt;
  </code></pre>
  
  <p>Here's my module config:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;config&gt;
    &lt;modules&gt;
      &lt;Rhino_FranchiseSelect&gt;
        &lt;version&gt;0.1.0&lt;/version&gt;
      &lt;/Rhino_FranchiseSelect&gt;
    &lt;/modules&gt;
    &lt;frontend&gt;
      &lt;routers&gt;
        &lt;customer&gt;
          &lt;args&gt;
            &lt;modules&gt;
              &lt;franchise before="Mage_Customer"&gt;Rhino_FranchiseSelect&lt;/franchise&gt;
            &lt;/modules&gt;
          &lt;/args&gt;
        &lt;/customer&gt;
      &lt;/routers&gt;
      &lt;events&gt;
        &lt;customer_session_init&gt;
          &lt;observers&gt;
            &lt;sessioninit_handler&gt;
              &lt;type&gt;singleton&lt;/type&gt;
              &lt;class&gt;Rhino_FranchiseSelect_Model_Observer&lt;/class&gt;
              &lt;method&gt;redirectToFranchise&lt;/method&gt;
            &lt;/sessioninit_handler&gt;
          &lt;/observers&gt;
        &lt;/customer_session_init&gt;
        &lt;controller_action_predispatch_customer_account_create&gt;
          &lt;observers&gt;
                &lt;handler&gt;
                      &lt;type&gt;singleton&lt;/type&gt;
                      &lt;class&gt;Rhino_FranchiseSelect_Model_Observer&lt;/class&gt;
                      &lt;method&gt;checkForRegion&lt;/method&gt;
                &lt;/handler&gt;
          &lt;/observers&gt;
        &lt;/controller_action_predispatch_customer_account_create&gt;
        &lt;/events&gt;
    &lt;/frontend&gt;
    &lt;global&gt;
      &lt;resources&gt;
        &lt;helpers&gt;
            &lt;what_should_this_tag_name_be&gt;
                &lt;class&gt;Rhino_FranchiseSelect_Helper&lt;/class&gt;
            &lt;/what_should_this_tag_name_be&gt;
          &lt;/helpers&gt;
      &lt;/resources&gt;
    &lt;/global&gt;
  &lt;/config&gt;
  </code></pre>
  
  <p>My helper is located here:
  /app/code/local/Rhino/FranchiseSelect/Helper/Data.php</p>
  
  <p>I'm trying to instantiate it like so:</p>
  
  <pre><code>$helper = Mage::helper("what-should-this-path-be");
  </code></pre>
  
  <p>I'm not sure what the config helper alias tag name or helper path name should be in order to get this to work. Can you help me identify how this should be structured?</p>