<?php
    require_once('auth.php');
 
    define('DB_HOST', 'xxx');
    define('DB_USER', 'xxx');
    define('DB_PASSWORD', 'xxx');
    define('DB_DATABASE', 'xxx');
 
	$connection = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
		if(!$connection) {
	die('Connection error: ' . mysql_error());
	}
 
	$selectdb= mysql_select_db(DB_DATABASE);
		if(!$selectdb) {
	die('Unable to select database: ' . mysql_error());
	}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>xxx</title>
<link rel="stylesheet" href="xxx.css">
<head>
</head>
<body>
<div id="xxx">
<table width="200" border="1">
 <tr>
	<th scope="col">xxx</th>
	<th scope="col">xxx</th>
	<th scope="col">xxx</th>
	<th scope="col">&nbsp;</th>
 </tr>
 <tr>
	<th scope="col">xxx</th>
	<th scope="col">
	<?php
 
	$maxcount = mysql_query("SELECT maxcount FROM `xxx` WHERE id='1'");
	$result = mysql_fetch_array($maxcount);
	echo ($result[$maxcount]);
	?>
	</th>
	<th scope="col">
	<?php
 
	$count = mysql_query("SELECT count FROM `xxx` WHERE id='1'");
	$result = mysql_fetch_array($count);
	echo ($result[$count]);
	?>
	</th>
	<th scope="col">
	<?php
 
		$count = mysql_query("SELECT count FROM `xxx` WHERE id='1'");
		$count_result = mysql_fetch_array($count);
		$maxcount = mysql_query("SELECT maxcount FROM `xxx` WHERE id='1'");
		$maxcount_result = mysql_fetch_array($maxcount);
 
		if($count_result<$maxcount_result)
		 {
 
			$sql = mysql_query("UPDATE xxx SET count=count+1 WHERE id='1'");
 
		}
 
		else
 
		{
			die;
		}
 
		  echo '<form action="'.$_SERVER['PHP_SELF'].'" method="GET" >'."\n";
		  echo '<input type="submit" name="submit" value="xxx"><br>'."\n";
		  echo '</form>'."\n";
	?>
	</th>
 </tr>
 </table>
</div>
</body>
</html>

I would want use javascript confirm box when submit on line 76 is clicked. How should it be done? The thing is I'm totaly new with javascript and can't get this work. So, could use some help.

//php
echo '<form onsubmit="confirmation()" action="'.$_SERVER['PHP_SELF'].'" method="GET" >'."\n";


//javascript
function confirmation() {
    var answer = confirm("submit?")
    if (answer){
        return true;
    }
    else{
        return false;
    }
}

You're welcome. But, if the problem is solved,please click the 'solved' link to mark the thread as solved thread. Thank you.