diff --git a/conservancy/static/js/supporter-page.js b/conservancy/static/js/supporter-page.js
index ad0f27f0..b3f03930 100644
--- a/conservancy/static/js/supporter-page.js
+++ b/conservancy/static/js/supporter-page.js
@@ -36,7 +36,7 @@ if (window.location.hash === "#renew") {
     window.location.hash = "#renewal";
 }
 
-function init_sustainer_forms () {
+function init_sustainer_form_validation () {
     // Forms start in "invalid" form, with the errors shown, so that
     // non-Javascript users see the errors by default and know what they must
     // enter.  Now we hide those for JavaScript users:
@@ -85,7 +85,9 @@ function init_sustainer_forms () {
             }
         });
     });
+}
 
+function init_sustainer_type_switching () {
     var selectSupportType = function(event) {
         var $selectedLink = $(event.target);
         $(".supporter-type-selector a").removeClass("supporter-type-selector-selected");
@@ -107,10 +109,10 @@ function init_sustainer_forms () {
 };
 
 function init_expanders () {
-    // Conservancy does a lot each year, so we initially hide the "Year in
-    // Review" text insideexpandable <details> sections to avoid a wall of
-    // text. If the URL fragment matches one of our expandable sections, we
-    // automatically expand it - that's a direct link.
+    // To avoid hitting visitors with a wall of text, we initially hide the
+    // "Year in Review" and similar text inside expandable <details>
+    // sections. If the URL fragment references one of these sections, we open
+    // that section.
     let details = qs('details' + window.location.hash)  // eg. #WritingAndSpeaking
     if (window.location.hash && details) {
         details.open = true;
@@ -129,5 +131,6 @@ function init_expanders () {
     });
 }
 
-init_sustainer_forms();
+init_sustainer_form_validation();
+init_sustainer_type_switching();
 init_expanders();