筛选nav选中状态

@@ -31,16 +31,17 @@ exports.init = function() {
          */
         function touchEvt(e) {
             var $cur = $(e.currentTarget);
+
+            if ($cur.hasClass('focus')) {
+                return;
+            }
+
+            $navItem.removeClass('focus');
+            $cur.addClass('focus');
+
             if ($cur.hasClass('screen-nav')) {
                 //筛选
             } else {
-                if ($cur.hasClass('focus')) {
-                    return;
-                }
-
-                $navItem.removeClass('focus');
-                $cur.addClass('focus');
-
                 $goodList.addClass('hide');
                 if ($cur.hasClass('new-patterns-nav')) {
                     $npc.removeClass('hide');