Index: openacs-4/packages/acs-templating/www/resources/xinha-nightly/plugins/ImageManager/thumbs.php
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-templating/www/resources/xinha-nightly/plugins/ImageManager/thumbs.php,v
diff -u -r1.10 -r1.11
--- openacs-4/packages/acs-templating/www/resources/xinha-nightly/plugins/ImageManager/thumbs.php	27 Mar 2009 08:20:44 -0000	1.10
+++ openacs-4/packages/acs-templating/www/resources/xinha-nightly/plugins/ImageManager/thumbs.php	23 May 2010 11:58:33 -0000	1.11
@@ -23,6 +23,16 @@
 
 //get the image and the full path to the image
 $image = rawurldecode($_GET['img']);
+
+// If the image is a URL, see if there is an x-thumbnail x-thumb or x-tn param on it
+//  probably best to use x-tn to save space on the URL
+if(preg_match('/^[a-z]+:\/\/.*[?&]x-(thumbnail|thumb|tn)=([^&]+)/i', $image, $Matches))
+{
+  // In which case, we will use the thumbnail
+  header('location: ' . rawurldecode($Matches[2]));
+  exit;
+}
+
 $fullpath = Files::makeFile($manager->getImagesDir(),$image);
 
 //not a file, so exit