diff --git a/app/assets/javascripts/theater.js b/app/assets/javascripts/theater.js
index 785485e..324f0bb 100644
--- a/app/assets/javascripts/theater.js
+++ b/app/assets/javascripts/theater.js
@@ -40,12 +40,15 @@ window.GalleryTheater = function() {
         button_play_string = '<button id ="theaterPlayButton" class="theaterButton">▶ </button>',
         button_stop_string = '<button id ="theaterStopButton" class="theaterButton">|| </button>',
         playtimeoutID;
-    var initialize = function() {
+    var set_margin = function () {
         if ($('#orbit-bar').height()>0){ //for show page
             $('#gallery-theater-stage>.gallery').css('margin-top','2.4em')
         }else{
             $('#gallery-theater-stage>.gallery').css('margin-top','')
         }
+    }
+    var initialize = function() {
+        set_margin();
         stage = $("#gallery-theater-stage");
         closeBtn = stage.find(".gallery-close");
         switchBtn = stage.find(".gallery-theme-switch");
@@ -559,7 +562,10 @@ window.GalleryTheater = function() {
 
     $(document).ready(function() {
         initialize();
-    })
+    });
+    $(window).load(function() {
+        set_margin();
+    });
 }
 
 // gallery-image gal-prev gal-inactive
\ No newline at end of file