=== Verification Code for Comments ===
Contributors: pwwang
Donate link: http://pwwang.com/
Tags: comment, verification, spam, robots, check code
Requires at least: 2.2
Tested up to: 3.1.1
Stable tag: trunk

Add an verification code when user posting a comment to keep robots away. You can use an image verification code or a math equation instead. 

== Description ==

Add an verification code when user posting a comment to keep robots away. You can use an image verification code or a math equation instead. 

Robots may post lots of spam comments into your database. You can add a verification code image or a math equation to avoid this.

Features:

* You can choose a verification code image or a math equation as you wish
* You don't need to edit any source code of WP, you just need to active the plugin

== Installation ==

1. Upload this plugin to the `/wp-content/plugins/` directory.
1. Activate the plugin through the 'Plugins' menu in WordPress. 
1. Confirgure the plugin in the confirguration panel.

== Changelog ==

=1.0.0=
* Finish the basic functions.

=2.0.0=
* Change the skin of code and input box
* Position of the box can be choosen
* Number of characters can be set
* Fix the bug in Chrome that code does not appear
* Case sensitivity is configurable now for string mode
* Length of string is configurable now for string mode
* Position os verification code box could be coufigurable now
=2.0.1=
* bug fixed
=2.0.2=
* bug fixed
=2.1.0
* remove jquery dependency
* re-orgnize the js code

== Screenshots ==

1. configuration panel
2. a verification code image for string mode
3. a verification code image for equation mode
4. the error message when invalid code was entered