<?php
    $start=$HTTP_GET_VARS['start'];
    // Populate the demo array
    $i=0;while ($i<=24){$entries[]=$i;$i++;}

    // the number of items displayed on one screen.
    $increase=5;    
    // if there is no start value set, set start to 0
    if(!$start){$start=0;}
    // end of display is start plus increase
    $end=$start+$increase;
    
    // If start is equal or bigger than increase, display the previous
    // link, which sets start to start-increase
    if ($start >= $increase){
    echo "<a href=\"".$HTTP_SERVER_VARS['PHP_SELF']."?start=".($start-$increase)."\">previous</a>&#160;";
    }
    // take the part of the entries in between start and start*increase and display it
    $disp=array_slice($entries,$start,$increase);
    foreach ($disp as $d){echo "&#160;$d&#160;";}

    // If the end is smaller than the amount of items in increase, display the next
    // link, which sets start to start+increase
    if ($end < sizeof($entries)){
    echo "&#160;<a href=\"".$HTTP_SERVER_VARS['PHP_SELF']."?start=".($start+$increase)."\">next</a>";
    }
?>