showSideView, g4_admin_url 이 정의되지 않았다는 오류 해결

head.sub.php

@@ -56,7 +56,11 @@ var g4_charset   = "<?=$g4['charset']?>";
 var g4_cookie_domain = "<?=$g4['cookie_domain']?>";
 var g4_is_gecko  = navigator.userAgent.toLowerCase().indexOf("gecko") != -1;
 var g4_is_ie     = navigator.userAgent.toLowerCase().indexOf("msie") != -1;
-<? if ($is_admin) { echo "var g4_admin = '{$g4['admin']}';"; } ?>
+<? 
+if ($is_admin) { 
+    echo PHP_EOL.'var g4_admin_url = "'.G4_ADMIN_URL.'";';
+} 
+?>
 </script>
 <script src="<?=G4_JS_URL?>/jquery-1.8.3.min.js"></script>
 <script src="<?=G4_JS_URL?>/common.js"></script>