--- loncom/publisher/lonpubdir.pm	2011/11/23 19:13:01	1.138
+++ loncom/publisher/lonpubdir.pm	2011/12/23 14:54:26	1.139
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Construction Space Directory Lister
 #
-# $Id: lonpubdir.pm,v 1.138 2011/11/23 19:13:01 raeburn Exp $
+# $Id: lonpubdir.pm,v 1.139 2011/12/23 14:54:26 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -584,8 +584,10 @@ sub putresource {
 	    $status=&mt('Modified').
 		'<br />'. $rights_status;
 	    if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
-		$status.='<br /><a href="/adm/diff?filename='.$linkfilename.
-		    '&amp;versiontwo=priv" target="cat">'.&mt('Diffs').'</a>';
+		$status.='<br />'.
+                         &Apache::loncommon::modal_link(
+                             '/adm/diff?filename='.$linkfilename.'&amp;versiontwo=priv',
+                             &mt('Diffs'),600,500);
 	    }
 	}