need help with this ajax function

[yami007]

well, i found this function somewhere on the web, it actually works but i hope i can get the output ( success/error ) to tell the user what happened !

 

the ajax function :

 

<script type="text/javascript" language="javascript">
	<!--
	function deleteNotification(yourimportedString) {

		url = "delete_notification.php?id=" + yourimportedString
		if (window.XMLHttpRequest) { // Non-IE browsers
		  req = new XMLHttpRequest();
		  req.onreadystatechange = targetDiv;
		  try {
			req.open("GET", url, true);
		  } catch (e) {
			alert(e);
		  }
		  req.send(null);
		} else if (window.ActiveXObject) { // IE
		  req = new ActiveXObject("Microsoft.XMLHTTP");
		  if (req) {
			req.onreadystatechange = targetDiv;
			req.open("GET", url, true);
			req.send();
		  }
		}

		//alert('javascript is working fine !')
	}

	function targetDiv() {
		if (req.readyState == 4) { // Complete
			  if (req.status == 200) { // OK response
				  document.getElementById("MyDivName").innerHTML = req.responseText;
			  } else {
				alert("Problem: " + req.statusText);
			  }
		}
	}
	-->
</script>

 

the php code on the delete_notification.php is as follows :

 

<?php 
if(isset($_GET['id'])) {

	$id = $_GET['id'];

	$sql = "DELETE FROM notifications_user WHERE user_id='{$id}' LIMIT 1";
	$query = mysql_query($sql);

	if($query) {
		$message = 'user has been deleted succesfully !<br/>';
	} else {
		$message = 'user could not be deleted !<br/>';
	}

}

if($message) {
	echo '<p>'.$message.'</p>';
}
?>

 

so I want the variable $message to be got by  the function,

i'm not so well at javascript, so i have no clue :s:s

 

 

i hope i get some help

thanks !!