PHP Rs Paging

[señorbadger]

Hello, ive written a Php Recordset Paging function i see problems
but cant think of solutions

please view attached php file and comment on how to improve

if you would like to use please feel free

File Attached = Paging.php
Content Below

<style type="text/css">
<!--
input {
    background-color: #CCD6FF;
    font-size: small;
}
-->
</style>
<?php 
function page_recordset($rs,$showfields)
{

    //if their is no results then return message saying so
    if (mysql_num_rows($rs) > 0)
        {
            //read the get vars, to find current page
            if (!empty($_GET['page']) && is_numeric($_GET['page'])) $mypage = $_GET['page']; else $mypage =1;
            //read the get vars, to get results per-page
            if (empty($_GET['perpage']) || !is_numeric($_GET['perpage'])) $perpage=10; else $perpage = $_GET['perpage'];
            //store the number of results
            $numres = mysql_num_rows($rs);
            //divide number of results by number per page
            $numpages = $numres / $perpage;
            //this is the bit i need help with to improve
            $bit = explode(".",$numpages);
            // it needs to ignore everything after the decimal place (thus always round down)
            $numpages = $bit[0];
            //if it wasn't dead on a page then add an extra page for the remaining results
            if ($numres % $perpage != 0) $numpages++;
            //if they gave us a invalid page act as page 1
            if ($mypage > $numpages) $mypage =1;
            //stop is the last record number 
            //calculate = current page * per page
            $stop = $mypage * $perpage;
            //if its the last page then the end is the last record
            if ($mypage == $numpages) $stop = $numres;
                //if the page is 1 then record 0 is the start
            switch ($mypage)
                {
                    case 1:
                        $start = 0;
                        break;
                    case 2:
                        //the start is current page + (per page -2)
                        $start = ($mypage + ($perpage -2));
                        break;
                    default:
                        //start is (current page * per page) - per page
                        $start = ($mypage * $perpage)-$perpage;
                        break;
                }
            echo "Showing records $start to $stop <br>\n";
            //previous page is page -1
            $prev = $mypage - 1;
            //if previous page = 0 then its the current page
            if ($prev == 0 ) $prev = 1;
            //if its the last page then next = current else next = current + 1
            if ($mypage == $numpages) $next = $numpages; else $next = $mypage + 1;
            //store the perpage value
            $qstring = "&perpage=".$perpage;
            $numcol = sizeof($showfields);
            //create the table structure
            ?>

<table border="0" cellpadding="0" cellspacing="0" style="border:thin solid #CDADFF;" width="92%">
            <?php
            echo "\t<tr>";
            for ($c=0;$c<$numcol;$c++)
            //loop to create the header
            {
            echo "\n\t\t<td bgcolor=\"#DDCDFF\"><strong>$showfields[$c]</strong></td>";
            }
            echo "\n\t</tr>\n";
            //loop through and display results
            for ($e = $start;$e < $stop;$e++)
                {
                    //fetch a row from the rs
                    $row = mysql_fetch_array($rs,MYSQL_ASSOC);
                    if ($e % 2 == 0) $bg = "#DFDFFF"; else $bg = "#FCFCFF";  
                    echo "\r\t<tr bgcolor=\"$bg\">";
                    for ($c=0;$c<$numcol;$c++)
                        //loop to create the rows data
                        {
                            echo "\n\t\t<td style=\"font-size:small;\">&nbsp;&nbsp;".$row[$showfields[$c]]."</td>";
                        }
                    echo "\r\t</tr>";
                }
                echo "\n\t<tr>\n\t\t<td colspan=\"".($numcol-1)."\" bgcolor=\"#CDADFF\" style=\"font-size:small;\">";
                ?>
                <form action="<?php echo $_SERVER['PHP_SELF']?>" method="get">
                    <form name="form1">Show 
  <select name="perpage">
    <option value="10">10</option>
    <option value="25">25</option>
    <option value="50">50</option>
    <option value="100">100</option>
  </select> Results per page  
  <input type="Submit" name="Mode" value="Go">
</form>

                </form>
                <?php 
                echo "</td>";
            echo "\n\t\t<td colspan=\"1\" bgcolor=\"#CDADFF\">";
             if ($numpages > 1) {?>
                <table border="0" align="right" cellpadding="2" cellspacing="0" class="main_border">
                  <tr>
                    <td><a href="<?php echo $_SERVER['PHP_SELF']?>?page=1<?php echo $qstring;?>">First</a></td>
                    <td><a href="<?php echo $_SERVER['PHP_SELF']?>?page=<?php echo $prev.$qstring;?>">Previous</a></td>
                    <td>
                      <?php 
                    for ($a = 1;$a < ($numpages +1); $a++)
                    {
                    
                        if ($a == $mypage)
                            {
                                ?>
                      <a href="<?php echo $_SERVER['PHP_SELF']?>?page=<?php echo $a.$qstring;?>" class="location"><span style="color:#FF2323;"><?php echo $a;?></span></a>
                      <?php 
                            }
                        else
                            {
                                ?>
                      <a href="<?php echo $_SERVER['PHP_SELF']?>?page=<?php echo $a.$qstring;?>" class="location"><?php echo $a;?></a>
                      <?php 
                            }
                        }
                    ?>
                    </td>
                    <td><a href="<?php echo $_SERVER['PHP_SELF']?>?page=<?php echo $next.$qstring;?>">Next</a></td>
                    <td><a href="<?php echo $_SERVER['PHP_SELF']?>?page=<?php echo $numpages.$qstring;?>">Last</a></td>
                  </tr>
                </table><?php }
            echo "</td>\n\t</tr>";
            
            ?>
</table><?php
        }
        else
        {
            echo "The Supplied Recordset is empty\n <br>\n";
        }
}
//test by giving a rs
$user = "root";
$pass = "**********";
$host = "localhost";
//connect to mysql or show error
$mydb = mysql_connect($host,$user,$pass) or die("Could not connect to database server<br><br>\n<h2>Technical Information</h2>".mysql_error());
//select the database
mysql_select_db("website",$mydb) or die(mysql_error());
$rs = mysql_query("select * from articles");
$fd = array("articlename","articledesc","articledate");
 page_recordset($rs,$fd)
?>