updated file_cache, a=chris

diff --git a/controllers/admin_controller.php b/controllers/admin_controller.php
index fe2652b1a..4225a28dc 100755
--- a/controllers/admin_controller.php
+++ b/controllers/admin_controller.php
@@ -1711,8 +1711,12 @@ class AdminController extends Controller implements CrawlConstants
                 "logindbms[elt('database-system').value]);\n";
             $data['SCRIPT'] .=
                 "elt('use-memcache').onchange = function () {" .
+                "setDisplay('filecache',".
+                "(elt('use-memcache').checked) ? false: true);" .
                 "setDisplay('memcache',".
                 "(elt('use-memcache').checked) ? true : false);};" .
+                "setDisplay('filecache', ".
+                "(elt('use-memcache').checked) ? false : true);\n".
                 "setDisplay('memcache', ".
                 "(elt('use-memcache').checked) ? true : false);\n";

diff --git a/views/elements/configure_element.php b/views/elements/configure_element.php
index 3c6ee713f..7c42999ed 100644
--- a/views/elements/configure_element.php
+++ b/views/elements/configure_element.php
@@ -224,12 +224,14 @@ class ConfigureElement extends Element
                     name="MEMCACHE_SERVERS"><?php e($data['MEMCACHE_SERVERS']);
                 ?></textarea>
                 </div>
+                <div id="filecache">
                 <div class="topmargin"><label for="use-filecache"><b><?php
                     e(tl('configure_element_use_filecache'))?></b></label>
                         <input type="checkbox" id="use-filecache"
                             name="USE_FILECACHE" value="true" <?php
                             e($data['USE_FILECACHE'] ? "checked='checked'" :
                                 "" ); ?> /></div>
+                </div>
             </fieldset>
             </div>
             <div class="topmargin"><fieldset><legend><?php