diff --git a/seiki.js b/seiki.js
new file mode 100755
index 0000000..b96a0e3
--- /dev/null
+++ b/seiki.js
@@ -0,0 +1,10 @@
+#!/usr/bin/env js
+var email = " hogehoge@example.com  \n";
+print(email);
+var localpart = "", domainpart ="";
+if (email.match(/\s*(\S+?)@([^@]+)\s*/)) {
+    localpart  = RegExp.$1;
+    domainpart = RegExp.$2;
+    print('local=${localpart}, dom=${domainpart}');
+}
+