If the user's browser's JavaScript is disabled (or not supported), then the Advanced Search Results page tells the user that s/he needs to enable JavaScript even though it does display search results. This happens because the Advanced Search script is in the Edit folder and all scripts in the Edit folder check to see that JavaScript is enabled.
Anonymous
Fixed in edit/isfdblib.py 1.25, installed in r2012-40 on 2012-11-01.