diff --git a/copyr.js b/copyr.js
new file mode 100644
index 0000000..7ba868a
--- /dev/null
+++ b/copyr.js
@@ -0,0 +1,17 @@
+function addLink() {
+    var body_element = document.getElementsByTagName('body')[0];
+    var selection;
+    selection = window.getSelection();
+    var pagelink = "<br /><br />著作权归作者所有。<br />商业转载请联系作者获得授权，非商业转载请注明出处。<br />作者：深海小涛<br />来源：<a href='"+document.location.href+"'>"+document.location.href+"</a>"; 
+    var copy_text = selection + pagelink;
+    var new_div = document.createElement('div');
+    new_div.style.left='-99999px';
+    new_div.style.position='absolute';
+    body_element.appendChild(new_div );
+    new_div.innerHTML = copy_text ;
+    selection.selectAllChildren(new_div );
+    window.setTimeout(function() {
+        body_element.removeChild(new_div );
+    },0);
+}
+document.oncopy = addLink;
\ No newline at end of file