<script language="JavaScript" src="counter.php" type="text/JavaScript"></script>

<?php
session_start ();

// get current hit
$opFile = fopen ("counter.txt", "r");
$handle = fread ($opFile, filesize ("counter.txt"));
fclose ($opFile);

// if new session
if (!isset ($_SESSION['hit'])){

// set session
$_SESSION['hit'] = TRUE;

// add the hit
$handle = $handle + 1;

// print javascript
echo 'document.write("'.$handle.' Hits");';

// put new hit to db
$opFile = fopen ("counter.txt", "w");
fwrite ($opFile, $handle);
fclose ($opFile);

// else
}else{

// print only
echo 'document.write("'.$handle.' Hits");';
}
?>