You refer to the wrong element, I have a working example for you, please check and let me know if it works for you:
$(document).ready(function() {
$('#comment-form-submit').click(function() {
$('#comment_form').submit();
alert('Handler for .submit() called.');
return false;
});
});
jsFiddle Working Demo
And for AJAX solution you need to refer to familiar and already discussed issue:
jquery serialize and $.post
Edited: Referring to your question about how to extract the ID of the clickable link, this code will do it for you:
$(document).ready(function() {
$(".comments.no").mouseover(function() {
myDivsId = this.id; // as you mouse over on the link it will be stored in Global Var and then transferred anywhere you wish.
});
$('#comment-form-submit').click(function() {
$('#comment_form').submit();
alert('Handler for .submit() called + div\'s ID = ' + myDivsId);
return false;
});
});
jsFiddle live demo