HOW TO CHANGE "POST A COMMENT" TEXT IN BLOGGER.

In the default Blogger template,to post a comment a link is always provided,i.e "Post a comment" if the embedded comment form is disabled.
Likewise,the text is always seen above the comment area if the embedded comment form is enabled.

If you are not satisfied with this default text,you can simply change it with an image/text.

HOW TO GO ABOUT THIS.

To change the POST A COMMENT text on your blog,just follow these simple steps.
First,login to your Blogger Account and go to Design >> Edit HTML.[Backup your template in case something goes wrong.] and
Check the box next to
Expand Widget Template.

Now,search for the following codes by pressing ctrl+f.

<a expr:href='data:post.addCommentUrl' expr:onclick='data:post.addCommentOnclick'><data:postCommentMsg/>
</a>

AND

<h4 id='comment-post-message'><data:postCommentMsg/></h4>

On getting those two codes,just REPLACE the texts in blue with whatever you like,such as "Write a comment,leave your replies etc.
To use an image instead of text,Just replace the codes in blue with the following.
<img src="YOUR-IMAGE-URL" alt="TEXT-TO-DISPLAY"/>

You are done.Just preview your blog and save it.

NOTE:-Remember to change the "YOUR-IMAGE-URL" above to the link of the text's image usually in .jpg , .png,etc format.
Likewise,change the "TEXT TO DISPLAY" above to the text your visitors will see in case they switched off their browser's image.