diff --git a/.classpath b/.classpath
index 1d79b6e..d38306b 100644
--- a/.classpath
+++ b/.classpath
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
 	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.6.0_10"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.6.0_10"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/.gitignore b/.gitignore
index bffca36..aab0684 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+/bin
diff --git a/.project b/.project
index 11fbcb3..af2ef6a 100644
--- a/.project
+++ b/.project
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>chengn-lang</name>
+	<name>sword-lang</name>
 	<comment></comment>
 	<projects>
 	</projects>
diff --git a/META-INF/NOTICE.txt b/META-INF/NOTICE.txt
index 45257eb..2180eb4 100644
--- a/META-INF/NOTICE.txt
+++ b/META-INF/NOTICE.txt
@@ -1,3 +1,8 @@
-need jar 
+
+====project home
+https://github.com/sword-org/sword-lang
+
+
+====need jar 
 commons-lang3
 Log4j
diff --git a/src/org/sword/chengn/lang/DateTime.java b/src/org/sword/lang/DateTime.java
similarity index 97%
rename from src/org/sword/chengn/lang/DateTime.java
rename to src/org/sword/lang/DateTime.java
index b37d8a1..7a56996 100644
--- a/src/org/sword/chengn/lang/DateTime.java
+++ b/src/org/sword/lang/DateTime.java
@@ -1,7 +1,7 @@
 /**
  * 
  */
-package org.sword.chengn.lang;
+package org.sword.lang;
 
 import java.util.Calendar;
 import java.util.Date;
diff --git a/src/org/sword/chengn/lang/DateTimeUtil.java b/src/org/sword/lang/DateTimeUtil.java
similarity index 99%
rename from src/org/sword/chengn/lang/DateTimeUtil.java
rename to src/org/sword/lang/DateTimeUtil.java
index f028ff9..738800f 100644
--- a/src/org/sword/chengn/lang/DateTimeUtil.java
+++ b/src/org/sword/lang/DateTimeUtil.java
@@ -1,7 +1,7 @@
 /**
  * 
  */
-package org.sword.chengn.lang;
+package org.sword.lang;
 
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
diff --git a/src/test/org/sword/chengn/lang/DateTimeTest.java b/src/test/org/sword/lang/DateTimeTest.java
similarity index 83%
rename from src/test/org/sword/chengn/lang/DateTimeTest.java
rename to src/test/org/sword/lang/DateTimeTest.java
index 08263b0..aa06d69 100644
--- a/src/test/org/sword/chengn/lang/DateTimeTest.java
+++ b/src/test/org/sword/lang/DateTimeTest.java
@@ -1,7 +1,7 @@
 /**
  * 
  */
-package test.org.sword.chengn.lang;
+package test.org.sword.lang;
 
 import org.junit.Test;
 
diff --git a/src/test/org/sword/chengn/lang/DateTimeUtilTest.java b/src/test/org/sword/lang/DateTimeUtilTest.java
similarity index 93%
rename from src/test/org/sword/chengn/lang/DateTimeUtilTest.java
rename to src/test/org/sword/lang/DateTimeUtilTest.java
index 3cab489..f66550a 100644
--- a/src/test/org/sword/chengn/lang/DateTimeUtilTest.java
+++ b/src/test/org/sword/lang/DateTimeUtilTest.java
@@ -1,7 +1,7 @@
 /**
  * 
  */
-package test.org.sword.chengn.lang;
+package test.org.sword.lang;
 
 import static org.junit.Assert.assertEquals;
 
@@ -10,7 +10,7 @@
 import java.util.Date;
 
 import org.junit.Test;
-import org.sword.chengn.lang.DateTimeUtil;
+import org.sword.lang.DateTimeUtil;
 
 
 /**