Pagination

<?php include('config.php');
    $query = "SELECT * FROM table_name";
    $result = mysql_query($query);
    $total_record = mysql_num_rows($result);
 
    $show = 5; // Number of record that want to show
 
    if ( isset($_GET['start']) ) {
        $start = $_GET['start'];
    } else {
	$start = 0;
    }
 
    $query = "SELECT * FROM table_name ORDER BY id DESC LIMIT $start, $show";
    $result = mysql_query($query);
 
    if ( !empty($total_record) ) {
        $num1 = $total_record / $show;
	$num1 = intval($num1);
	if ( $total_record % $show != 0 ) $num1 += 1;
	for ( $i=0; $i < $num1; $i++ ) {
	    $j = $i * $show;
	    $pagenum = $i + 1;
 
	    if( empty($_GET['curr']) ) $_GET['curr'] = 1;
 
            $current = $_GET['curr'] == $pagenum ? "current" : NULL;
	    $curr = $pagenum;
	    $pagnav .= '<li class="clearfix"><a class="';
            $pagnav .= $current . '" href="?start=' . $j . '&&curr=' . $curr . '">' . $pagenum . '</li></a>';
	} // end for
	echo "<ul>" . $pagnav . "</ul>";
    } // end if
?>