When we select the 'info' list in the combobox, the article with type 'info' characteristic automatically showed up, and when we select 'Berita' list in the combobox, the article with type 'Berita' charateristic automatically showed up.This is a long script that uses a post method.  Can you help me make it simpler, perhaps using functions?<form method=post name=form2>  <select name=type id=type>    <option value=Semua>Semua</option>    <option value=Berita>Berita</option>    <option value=Info>Info</option>  </select>  <input type=submit id=type /></form><table width=200 border=1 class=tbl_art_content id=results><tbody>  <tr>  </tr>    <?php        $i=0;        $no=0;            if($_POST['type'] == 'Semua')            {                $query_art = mysql_query(SELECT * FROM artikel_tbl ORDER BY id) or die(mysql_error());            }            else if ($_POST['type'] == 'Berita')            {                $query_art = mysql_query(SELECT * FROM artikel_tbl WHERE type = 'Berita' ORDER BY id) or die(mysql_error());            }            else if ($_POST['type'] == 'Info')            {                $query_art = mysql_query(SELECT * FROM artikel_tbl WHERE type = 'Info' ORDER BY id) or die(mysql_error());            }            else            {                $query_art = mysql_query(SELECT * FROM artikel_tbl ORDER BY id) or die(mysql_error());            }            while($show=mysql_fetch_array($query_art))            {                 $no++;                if(($no%2)==0)                    $color = '#f2f2f2';                 else                    $color = '#f9f9f9';    ?>  <tr bgcolor=<?php echo $color; ?> class=rows>    <td class=chk_content><input type=checkbox name=checked<?php echo $i; ?> value=<?php echo $show['id']; ?>/></td>    <td class=no_content><?php echo $no; ?></td>    <td class=middle_content><?php echo $show['judul']; ?></td>    <td class=middle_content><?php echo $show['penulis']; ?></td>    <td class=middle_content><?php echo $show['type']; ?></td>    <td class=middle_content><img src=.././upload/artikel/<?php echo $show['foto']; ?> width=144 height=88/></td>    <td class=middle_content><?php echo $show['tanggal']; ?></td>    <td class=aksi_content><div id=aksi_table>            <ul>                <li><a href=table_artikel.php?edit=<?php echo $show['id']; ?>><img src=images/Apps-text-editor-icon.png width=20 height=20 /></a></li>                <li><a href=table_artikel.php?delete=<?php echo $show['id']; ?> onclick=return confirm('Hapus artikel?');><img src=images/Remove-icon.png width=20 height=20/></a></li>            </ul>        </div><!-- end of aksi_table --></td>  </tr>    <?php        $i++;         }    ?>    <input type=hidden name=n value=<?php echo $i; ?> />     </tbody></table>
Sorting with combobox
javascript;php;mysql