Index: branches/version-2_13-dev/data/Smarty/templates/admin/products/product.tpl
===================================================================
--- branches/version-2_13-dev/data/Smarty/templates/admin/products/product.tpl	(revision 23230)
+++ branches/version-2_13-dev/data/Smarty/templates/admin/products/product.tpl	(revision 23473)
@@ -55,5 +55,6 @@
     });
     // IE7再描画不具合対策
-    if ($.browser.msie && $.browser.version >= 7) {
+    var ua = navigator.userAgent.toLowerCase();
+    if (ua.indexOf("msie") != -1 && ua.indexOf('msie 6') == -1) {
         $('#' + select).hide();
         $('#' + select).show();