Add a second style where we use unordered lists instead of a <select>.

It's hacky, but works.  Switch between styles using Admin > Settings >
Advanced and changing albumtree.style between "select" and "list".

3.0/modules/albumtree/helpers/albumtree_block.php

@@ -26,9 +26,10 @@ class albumtree_block_Core {
     $block = new Block();
     switch ($block_id) {
     case "albumtree":
+      $style = module::get_var("albumtree", "style", "select");
       $block->css_id = "g-albumtree";
       $block->title = t("Album Tree");
-      $block->content = new View("albumtree_block.html");
+      $block->content = new View("albumtree_block_{$style}.html");
       $block->content->root = item::root();
       break;
     }

3.0/modules/albumtree/module.info

@@ -1,3 +1,3 @@
 name = "Album Tree"
 description = "Provides a block in the sidebar with quick links to all other albums."
-version = 1
+version = 2