code review by zhaobiao

@@ -17,6 +17,7 @@ var $icon = $('.search-icon');
 var $form = $('#search-form');
 
 var $history = $('.history');
+var $historySearch = $('.history-search');
 
 var $clearHistory = $('#clear-history');
 
@@ -31,6 +32,8 @@ chHammer.on('tap', function() {
     localStorage.removeItem('historys');
 
     $history.html('');
+    $historySearch.hide();
+    $clearHistory.hide();
 
     window.rePosFooter();
 });
@@ -80,7 +83,7 @@ $('#search').on('touchend', function() {
 
             $history.html(html);
             $clearHistory.removeClass('hide');
-
+            $historySearch.removeClass('hide');
             window.rePosFooter();
         }
     }