diff --git a/change2.js b/change2.js
new file mode 100644
index 0000000..adf34fe
--- /dev/null
+++ b/change2.js
@@ -0,0 +1,15 @@
+i = 0;
+url = "../";                //背景画像保存先
+                        //配列を作成
+img = new Array("jstrr1.png","jstrr2.png","jstrr3.jpg");
+function change(){                //背景画像を変える
+    i++;
+    if(i >= img.length) {
+        i = 0;
+    }
+    document.body.background = url + img[i];
+}
+function tm(){                    //タイマーをセット
+    document.body.background = url + img[i];
+    tm = setInterval("change()",5000);
+}
\ No newline at end of file