Bug 176733 Saving of images from "Page Info" does not work

patch by grigorig@web.de r=db48x sr=bz a=asa

suite/browser/pageInfo.js

@@ -716,7 +716,7 @@ function getSelectedImage(tree)
 function saveMedia()
 {
   var tree = document.getElementById("imagetree");
-  var item = getSelectedItem(tree);
+  var item = getSelectedImage(tree);
   var url = getAbsoluteURL(getSource(item), item);
 
   if (url)