Zapytanie SQL ze zmienną Opcje

[MrBloody]

Witam,

Chcę wyświetlić komentarze tylko do odpowiedniego newsa. Sprawa byłaby prosta gdybym miał wszystko w jednym pliku, a tak nie wiem jak mam to zrobić.

Chcę, aby zapytanie miało formę "SELECT * FROM comments WHERE com_newsid = $newsid ORDER BY com_id DESC", ale nie wiem jak pobrać tą zmienną do tego pliku.

fetch.php

[PHP] pobierz, plaintext 
<?php
	include_once('Addons/db.php');
 
	$sql = "SELECT * FROM comments ORDER BY com_id DESC ";
	$res = mysql_query($sql);
	$result = array();
 
 
 
	while( $row = mysql_fetch_array($res) )
		array_push($result, array('com_id'      => $row[0],
								  'com_author'  => $row[1],
								  'com_content' => $row[2],
								  'com_newsid'  => $row[3],
								  'com_adate'   => $row[4]));
 
	echo json_encode(array("result" => $result));
?>
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Skrypt

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$(document).ready( function() {
	done();	
});
 
function done() {
	setTimeout( function() {
	updates();
	done();
	}, 200);
}
 
function timeConverter(UNIX_timestamp){
 var a = new Date(UNIX_timestamp*1000);
 var months = ['01','02','03','04','05','06','07','08','09','10','11','12'];
     var year = a.getFullYear();
     var month = months[a.getMonth()];
     var date = a.getDate();
     var hour = a.getHours();
     var min = ("0" + a.getMinutes()).substr(-2);
     var sec = a.getSeconds();
     var time = date+'.'+month+'.'+year+', '+hour+':'+min+':'+sec ;
     return time;
}
 
 
function updates() {
 
		$.getJSON("fetch.php", function(data) {
			$("d").empty();
 
			$.each(data.result, function() {
 
				$("d").append("<div><div id='l_comment'><img src='' width='50px' height='50px;'/></div>&nbsp<b><a href='../users/user.php?name="+this['com_author']+"' class='toprofile'>"+this['com_author']+"</a></b> napisał/a, <div style='float: right; margin-right: 12px;'>"+timeConverter(this['com_adate'])+"</div><div id='r_comment' style='margin-bottom: 10px;'>"+this['com_content']+"</div></div>");
 
				});
		});
}
[JAVASCRIPT] pobierz, plaintext 

index.php

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<?php 		
				$result = mysql_query("SELECT * FROM `news` ORDER BY `news_id` DESC");
				while( $row = mysql_fetch_assoc( $result )) {
			?>
					<div id="news">
						<div class="more-less">
							<div class="more-block">
								<p style="float: right; padding-bottom: 0px; margin-bottom: -5px;"><?=date('d.m.Y, H:m:s', $row['news_adate'])?></p>
								<p style="float: left; padding-bottom: 0px; padding-left: 0px; margin-bottom: -10px;"><b><?=$row['news_title']?></b></p>
								<p style="clear: both; padding-bottom: 0px; margin-bottom: -5px;"></p><hr>
								<div style="margin-top: 2px;">
									<div style="float: left;"><?php echo "<img src='../Addons/Uploads/".$row['news_image']."' width='158px' height='158px'>";?></div>
									<div style="float: left; width: 5px; height: 158px;"></div>
									<div style="text-indent: 25px;"><?=$row['news_content']?></div>
									<div style="clear: both;"></div>
								</div>
							</div>
						</div>
						<hr>
						<p style="text-align: right; padding-bottom: 0; padding-top: 0;">(0) <f_link><a href="java script:showonlyone('<?=$row['news_id'];?>')" style="cursor: pointer;">- komentarze - </a></f_link></p>
 
							<div class="comments" id="<?=$row['news_id']?>">
							<?php	
							$newsid = $row['news_id'];
							if($_SESSION['logged']) {
									$user_data = get_user_data();
									$author = $user_data['user_login'];											
							?>
								<div id="new_comment">
										Napisz komentarz:<br />
										<form class="newComment" action="newcomment.php" method="post"> 
											<input type="hidden" name="author" value="<?=$author;?>">
											<input type="hidden" name="newsid" value="<?=$newsid;?>">
											<div style="float: left;"><textarea name="comment" rows="2" cols="90" value="<?=$_POST['comment']?>"></textarea></div><div style="float: left;"><input type="submit" value="OK" style="width: 40px; height: 34px; margin-left: 3px;"/></div>
											<div style="clear: both;"></div>
										</form>
								</div>
 
 
							<?php
							} else { echo 'Zaloguj się, aby skomentować ten artykuł.'; };
							?>
								<div id='showcomments'>
									<d></d>
								</div>
							</div>
					</div>
			<?php }; ?>
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Z góry dziękuję za pomoc.