Pagination og "?=something"

PHP kode 

 <?php
     **Database stuff**
     mysql_select_db($database,$db);    
     
     $tbl_name="pictures";        
     $adjacents = 3;
     
     
     $query = "SELECT COUNT(*) as num FROM $tbl_name";
     $total_pages = mysql_fetch_array(mysql_query($query));
     $total_pages = $total_pages[num];
     
     
     $targetpage = "";
     $limit = 72;
     $page = $_GET['page'];
     if($page) 
         $start = ($page - 1) * $limit;             
     else
         $start = 0;
     
     
     $sql = "SELECT ********** FROM $tbl_name WHERE *************** ORDER BY id DESC LIMIT $start, $limit";
     $result = mysql_query($sql);
     
     
     if ($page == 0) $page = 1;
     $prev = $page - 1;
     $next = $page + 1;
     $lastpage = ceil($total_pages/$limit);
     $lpm1 = $lastpage - 1;
     
 
     $pagination = "";
     if($lastpage > 1)
     {    
         $pagination .= "<div class=\"pagination\">";
         if ($page > 1) 
             $pagination.= "<a href=\"$targetpage?page=$prev\"><img src=\"../img/prev.png\" /></a>";
         else
             $pagination.= "<img src=\"../img/prev_disabled.png\" />";    
         
         if ($lastpage < 7 + ($adjacents * 2))
         {    
             for ($counter = 1; $counter <= $lastpage; $counter++)
             {
                 if ($counter == $page)
                     $pagination.= "<span class=\"current\"> $counter</span>";
                 else
                     $pagination.= "<a href=\"$targetpage?page=$counter\"> $counter</a>";                    
             }
         }
         elseif($lastpage > 5 + ($adjacents * 2))
         {
             if($page < 1 + ($adjacents * 2))        
             {
                 for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
                 {
                     if ($counter == $page)
                         $pagination.= "<span class=\"current\"> $counter</span>";
                     else
                         $pagination.= "<a href=\"$targetpage?page=$counter\"> $counter</a>";                    
                 }
                 $pagination.= "...";
                 $pagination.= "<a href=\"$targetpage?page=$lpm1\"> $lpm1</a>";
                 $pagination.= "<a href=\"$targetpage?page=$lastpage\"> $lastpage</a>";        
             }
             elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
             {
                 $pagination.= "<a href=\"$targetpage?page=1\"> 1</a>";
                 $pagination.= "<a href=\"$targetpage?page=2\"> 2</a>";
                 $pagination.= "...";
                 for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
                 {
                     if ($counter == $page)
                         $pagination.= "<span class=\"current\"> $counter</span>";
                     else
                         $pagination.= "<a href=\"$targetpage?page=$counter\"> $counter</a>";                    
                 }
                 $pagination.= "...";
                 $pagination.= "<a href=\"$targetpage?page=$lpm1\"> $lpm1</a>";
                 $pagination.= "<a href=\"$targetpage?page=$lastpage\"> $lastpage</a>";        
             }
             else
             {
                 $pagination.= "<a href=\"$targetpage?page=1\"> 1</a>";
                 $pagination.= "<a href=\"$targetpage?page=2\"> 2</a>";
                 $pagination.= "...";
                 for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
                 {
                     if ($counter == $page)
                         $pagination.= "<span class=\"current\"> $counter</span>";
                     else
                         $pagination.= "<a href=\"$targetpage?page=$counter\"> $counter</a>";                    
                 }
             }
         }
         
         if ($page < $counter - 1) 
             $pagination.= "<a href=\"$targetpage?page=$next\"><img src=\"../img/next.png\" />";
         else
             $pagination.= "<img src=\"../img/next_disabled.png\" />";
         $pagination.= "</div>\n";        
     }
 ?>

PHP kode 

 $targetpage = "category=animals";