move function definition before first use

starter-kit.org

@@ -265,6 +265,21 @@ interested in the actual code implementing the starter kit.
     (require 'recentf)
   #+end_src
 
+- Function to check if a packages exist in the load path.  This may be
+  used to preempt the installation of ELPA versions of packages whose
+  source may already be found in the load path.
+  #+name: starter-kit-loadable
+  #+begin_src emacs-lisp
+    (defun starter-kit-loadable-p (package)
+      "Check if PACKAGE is loadable from a directory in `load-path'."
+      (let ((load-file (concat (symbol-name package) ".el")))
+        (catch 'file-found
+          (dolist (dir load-path)
+            (let ((path (expand-file-name load-file dir)))
+              (when (file-exists-p path)
+                (throw 'file-found path)))))))
+  #+end_src
+
 - ELPA archive repositories and two packages to install by default.
   #+begin_src emacs-lisp
     (setq package-archives
@@ -347,21 +362,6 @@ interested in the actual code implementing the starter kit.
            file))))
   #+end_src
 
-- Function to check if a packages exist in the load path.  This may be
-  used to preempt the installation of ELPA versions of packages whose
-  source may already be found in the load path.
-  #+name: starter-kit-loadable
-  #+begin_src emacs-lisp
-    (defun starter-kit-loadable-p (package)
-      "Check if PACKAGE is loadable from a directory in `load-path'."
-      (let ((load-file (concat (symbol-name package) ".el")))
-        (catch 'file-found
-          (dolist (dir load-path)
-            (let ((path (expand-file-name load-file dir)))
-              (when (file-exists-p path)
-                (throw 'file-found path)))))))
-  #+end_src
-
 - Work around a bug on OS X where system-name is FQDN.
   #+name: starter-kit-osX-workaround
   #+begin_src emacs-lisp