Textarea now includes its js blurb only once.

docs/changelog/7.x.x.txt

@@ -9,6 +9,8 @@
  - rfe: added Asset History browser (perlDreamer Consulting, LLC and Plain Black)
  - fixed: Commit w/ approval workflow can crash under race conditions
    resulting in permanently locked content (Martin Kamerbeek / Oqapi )
+ - fixed: Each textarea inserts identical JS that should be inserted only once
+   ( Martin Kamerbeek / Oqapi )
 
 7.6.14
  - fixed: IE6 shows Admin Bar over Asset Manager

lib/WebGUI/Form/Textarea.pm

@@ -159,11 +159,16 @@ sub toHtml {
         $url->extras( 'yui-webgui/build/form/textarea.js' ), 
         { type => 'text/javascript' }, 
     );
-    $style->setRawHeadTags( q|
-        <script type="text/javascript">
-            YAHOO.util.Event.onDOMReady( function () { WebGUI.Form.Textarea.setMaxLength() } );
-        </script>
-    | );
+
+    unless ( $self->session->stow->get( 'texareaHeadTagsLoaded' ) ) {
+        $style->setRawHeadTags( q|
+            <script type="text/javascript">
+                YAHOO.util.Event.onDOMReady( function () { WebGUI.Form.Textarea.setMaxLength() } );
+            </script>
+        | );
+
+        $self->session->stow->set( 'texareaHeadTagsLoaded', 1 )
+    }
 
 	if ($self->get("resizable")) {
         $style->setLink($url->extras("resize.css"), {type=>"text/css", rel=>"stylesheet"});