Update showdoc.js

Public/js/common/showdoc.js

@@ -107,4 +107,9 @@ function delCookie (NameOfCookie)
     allow_dismiss: true,
     stackup_spacing: 10 // spacing between consecutively stacked growls.
   });
- }
+ }
+
+//关闭Div
+function closeDiv(target) {
+	$(target).hide();
+}