if($GET['from']==""){
$GET['from']=0;
}
$result = mysql_query("select * from plant_info where $category = '$spec' order by item LIMIT ".$GET['from'].","($GET['from']+10)) ;
Obviously for the previous nex page make links like:
<a href="somepage.php?from=<?php echo ($_GET['from']+10); ?>">next page</a>
if($GET['from']>=10){
<a href="somepage.php?from=<?php echo ($GET['from']-10); ?>">previous page</a>
}
You get the picture...