diff --git a/configure.ac b/configure.ac
index 72cede424..24461ce2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -614,8 +614,9 @@ data/y-web/favicon/Makefile
 data/y-web/images/Makefile
 data/y-web/info/Makefile
 data/y-web/jquery/Makefile
-data/y-web/lcd4linux/Makefile
 data/y-web/languages/Makefile
+data/y-web/lcd4linux/Makefile
+data/y-web/prototype/Makefile
 data/y-web/scripts/Makefile
 data/y-web/styles/Makefile
 data/zapit/Makefile
diff --git a/data/y-web/Makefile.am b/data/y-web/Makefile.am
index 8cf3638a8..61ccfc5df 100644
--- a/data/y-web/Makefile.am
+++ b/data/y-web/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = images scripts languages styles
+SUBDIRS = images scripts languages styles prototype
 
 # NI-yWeb
 SUBDIRS += favicon info jquery lcd4linux
@@ -9,7 +9,6 @@ install_DATA =	channels.js \
 		extensions.txt \
 		favicon.ico \
 		index.html \
-		prototype.js \
 		robots.txt \
 		Y_About.yhtm \
 		Y_Baselib.js \
@@ -78,9 +77,7 @@ install_DATA =	channels.js \
 		Y_yweb.js
 
 # file manager
-install_DATA +=	accordion.js \
-		effects.js \
-		Y_Blocks_Filemgr.txt \
+install_DATA +=	Y_Blocks_Filemgr.txt \
 		Y_Filemgr.yhtm \
 		Y_Filemgr_Edit.yhtm
 
diff --git a/data/y-web/Y_Filemgr.yhtm b/data/y-web/Y_Filemgr.yhtm
index 02ece4324..adeddffae 100644
--- a/data/y-web/Y_Filemgr.yhtm
+++ b/data/y-web/Y_Filemgr.yhtm
@@ -1,7 +1,7 @@
 {=include-block:Y_Blocks.txt;head=}
 {=include-block:Y_Blocks.txt;js_prototype=}
-<script type="text/javascript" src="/effects.js"></script>
-<script type="text/javascript" src="/accordion.js"></script>
+<script type="text/javascript" src="/prototype/effects.js"></script>
+<script type="text/javascript" src="/prototype/accordion.js"></script>
 <script type="text/javascript" src="/Y_Baselib.js"></script>
 <script type="text/javascript">
 //<![CDATA[
diff --git a/data/y-web/prototype/Makefile.am b/data/y-web/prototype/Makefile.am
new file mode 100644
index 000000000..8c8a7f9bc
--- /dev/null
+++ b/data/y-web/prototype/Makefile.am
@@ -0,0 +1,8 @@
+installdir = $(PRIVATE_HTTPDDIR)/prototype
+
+# prototype library; see http://prototypejs.org/
+install_DATA = prototype.js
+
+# prototype effects; see http://script.aculo.us
+install_DATA += effects.js
+install_DATA += accordion.js
diff --git a/data/y-web/accordion.js b/data/y-web/prototype/accordion.js
similarity index 100%
rename from data/y-web/accordion.js
rename to data/y-web/prototype/accordion.js
diff --git a/data/y-web/effects.js b/data/y-web/prototype/effects.js
similarity index 100%
rename from data/y-web/effects.js
rename to data/y-web/prototype/effects.js
diff --git a/data/y-web/prototype.js b/data/y-web/prototype/prototype.js
similarity index 100%
rename from data/y-web/prototype.js
rename to data/y-web/prototype/prototype.js