disable search input when query active

xq/restx_dict_cached.xq

@@ -102,7 +102,10 @@ declare function page:header($lang as xs:string, $href-other as xs:string) {
                 <input name="searchQuery" 
                        placeholder="{if ($lang = 'ru') then 'Искать' else 'Search'}"
                        value="{session:get('searchQuery')}"
-                       aria-label="Search" />
+                       aria-label="Search">
+                       {if (exists(session:get('searchQuery'))) then 
+                         attribute disabled {"1"} }
+                </input>
                 {if (not(session:get('searchQuery'))) then
                 <button type="submit">
                   <svg id="abv-search-icon" xmlns="http://www.w3.org/2000/svg"