I want a Box Counter Characters Comments Wordpress Plugin

I want as is for example in the image...
But the counter I want begins with "0" and will be increasing...

 

http://lmgtfy.com/?q=textarea+characters+count

 

Download this plugin and install. http://wordpress.org/extend/plugins/gregs-comment-length-limiter/
then do following changes
inside the plugin open gcll.php file
Line number 101
change
document.getElementById('commentlen').value = $limit - textarea.value.length;
to
document.getElementById('commentlen').value = textarea.value.length;

and
Line number 133
change
$limit = $this->opt('upper_limit');
to
$limit = 0;

Then refresh the page.. it will work as you asked

 

Thank you iteamweb! That changes really works. But, I'm using others plugins in comments too... And all thats plugins is very essential to me.... the plugins I'm using is the:

"Powercomment" (http://wordpress.org/extend/plugins/powercomment/)
"Growmap Anti Spambot" (http://wordpress.org/extend/plugins/growmap-anti-spambot-plugin/)
That 2 is too very important to me, and using it with that "Greg's comment length limiter" when I forget check the ratio (from Growmap Anti Spambot) what says "Meu comentário não é SPAM" (translation: "My comment is not SPAM") whether I forget mark it, I get a error of "Powercomment" sayng:

"Please enter no more than 1 characters."​

Look at image...

And when I finally finish typing the comment, and mark the ratio button, unfortunately nothing happens. The submit button don't sends the comment.

Ie,I think they may be in conflict with one another:

Growmap Anti Spambot X Powercomment X Greg's comment length limiter ?

Can you help me that?

(sorry my bad english... I'm from Brazil.)