Ajax Türkçe Karakter Sorunu

Mrb arkadaşlar sitem için internetten bir ajax yorum örneği buldum fakat bir türkü türkçe karakter problemini çözemedim. internetteki ce buradaki çözüm yöntemlerini denedim ama olmadı. yardımcı olabilirmisiniz.

index.php



content="text/html; charset=utf-8" />




<script></script>




// Connect to the database
include('config.php');
$id_post = "1"; //the post or the page id
?>

date_default_timezone_set('Europe/Istanbul');
$sql = mysql_query("SELECT * FROM comments WHERE id_post = '$id_post' AND onay='1'") or die(mysql_error());;
while($affcom = mysql_fetch_assoc($sql)){
$name = $affcom['name'];
$email = $affcom['email'];
$comment = $affcom['comment'];
$date = $affcom['date'];

// Get gravatar Image
// https://fr.gravatar.com/site/implement/images/php/
$default = "mm";
$size = 35;
$grav_url = "http://www.gravatar.com/avatar/".md5(strtolower(trim($email)))."?d=".$default."&s=".$size;

?>

Yorum yazın ...

Gönder

İptal

<script>
$(function(){
//alert(event.timeStamp);
$('.new-com-bt').click(function(event){
$(this).hide();
$('.new-com-cnt').show();
$('#name-com').focus();
});

/* when start writing the comment activate the "add" button */
$('.the-new-com').bind('input propertychange', function() {
$(".bt-add-com").css({opacity:0.6});
var checklength = $(this).val().length;
if(checklength){ $(".bt-add-com").css({opacity:1}); }
});

/* on clic on the cancel button */
$('.bt-cancel-com').click(function(){
$('.the-new-com').val('');
$('.new-com-cnt').fadeOut('fast', function(){
$('.new-com-bt').fadeIn('fast');
});
});

// on post comment click
$('.bt-add-com').click(function(){
var theCom = $('.the-new-com');
var theName = $('#name-com');
var theMail = $('#mail-com');

if( !theCom.val()){
alert('Lütfen yorumunuzu yazınız!');
}else{
$.ajax({
type: "POST",
url: "ajax/add-comment.php",
data: 'act=add-com&id_post='++'&name='+theName.val()+'&email='+theMail.val()+'&comment='+theCom.val(),
success: function(html){
theCom.val('');
theMail.val('');
theName.val('');
$('.new-com-cnt').hide('fast', function(){
$('.new-com-bt').show('fast');
$('.new-com-bt').before(html);
})
}
});
}
});

});
</script>





Ajax.php
date_default_timezone_set('Europe/Istanbul');
extract($_POST);
if($_POST['act'] == 'add-com'):
$name = htmlentities($name);
$email = htmlentities($email);
$comment = htmlentities($comment);

// Connect to the database
include('../config.php');

// Get gravatar Image
// https://fr.gravatar.com/site/implement/images/php/
$default = "mm";
$size = 35;
$grav_url = "http://www.gravatar.com/avatar/" . md5( strtolower( trim( $email ) ) ) . "?d=" . $default . "&s=" . $size;

if(strlen($name) <= '1'){ $name = 'Guest';}
//insert the comment in the database
mysql_query("INSERT INTO comments (name, email, comment, id_post)VALUES( '$name', '$email', '$comment', '$id_post')");
if(!mysql_errno()){
?>

?>


SQL TABLOSU
CREATE TABLE IF NOT EXISTS `comments` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(40) NOT NULL,
`email` varchar(60) NOT NULL,
`comment` text NOT NULL,
`id_post` int(11) NOT NULL,
`date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`onay` int(1) NOT NULL DEFAULT '0',
PRIMARY KEY (`id`)
)ENGINE=MyISAM DEFAULT CHARSET=latin1;

ajax.php dosyasının en başındaki
header("Content-Type: text/html; charset=utf-8");