Ho fatto qualche modifica e non mi funziona più nulla..
tra l'altro ancora non avevo messo il controllo dei valori doppi.
Questo è il codice (spiegam come fare a formattarlo che son mica capace)---

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>

<head>
<title>Index</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" type="text/css" href="orsi.css">
<script language='javascript' type='text/javascript'>
var cont =0; function increm_setta(nom) { cont++; var ss = document.forms[0].elements['select'+nom]; ss.selectedIndex=cont;} function check(nom) { return true;}
</script>
</head>

<body>
<div id="testata"> [img]banner.gif[/img] </div>

<div id="menu">
<a href =ordinamento.php?categoria=2003&min_foto=1>2003

</a><a href =ordinamento.php?categoria=2002&min_foto=1>2002

</a><a href =ordinamento.php?categoria=2001&min_foto=1>2001

</a><a href =ordinamento.php?categoria=2000&min_foto=1>2000

</a><a href =ordinamento.php?categoria=1999&min_foto=1>1999

</a><a href =ordinamento.php?categoria=1998&min_foto=1>1998

</a><a href =ordinamento.php?categoria=1996&min_foto=1>1996

</a><a href =ordinamento.php?categoria=1995&min_foto=1>1995

</a><a href =ordinamento.php?categoria=1994&min_foto=1>1994

</a><a href =ordinamento.php?categoria=1993&min_foto=1>1993

</a><a href =ordinamento.php?categoria=1992&min_foto=1>1992

</a><a href =ordinamento.php?categoria=1991&min_foto=1>1991

</a><a href =ordinamento.php?categoria=1990&min_foto=1>1990

</a><a href =ordinamento.php?categoria=1989&min_foto=1>1989

</a><a href =ordinamento.php?categoria=1988&min_foto=1>1988

</a><a href =ordinamento.php?categoria=1987&min_foto=1>1987

</a></div> <div id = 'h1'></div></div>

<div id="contenuto">
<form action="pagina2.php">
<div class="colonna">

1040
<a href"#" onClick="increm_setta('small_1040-01.jpg'); return false;"><img src ="uploads/small_1040-01.jpg"</a>
<select name = "img[6]" onchange="check("small_1040-01.jpg")";><option value =" "> </option><option value = "1">1</option><option value = "2">2</option><option value = "3">3</option><option value = "4">4</option></select></p></div><div class="colonna">

1020
<a href"#" onClick="increm_setta('small_1020-28.jpg'); return false;"><img src ="uploads/small_1020-28.jpg"</a>
<select name = "img[11]" onchange="check("small_1020-28.jpg")";><option value =" "> </option><option value = "1">1</option><option value = "2">2</option><option value = "3">3</option><option value = "4">4</option></select></p></div><div class="colonna">

1020
<a href"#" onClick="increm_setta('small_1020-05.jpg'); return false;"><img src ="uploads/small_1020-05.jpg"</a>
<select name = "img[12]" onchange="check("small_1020-05.jpg")";><option value =" "> </option><option value = "1">1</option><option value = "2">2</option><option value = "3">3</option><option value = "4">4</option></select></p></div><div class="colonna">

1020
<a href"#" onClick="increm_setta('small_1020-01.jpg'); return false;"><img src ="uploads/small_1020-01.jpg"</a>
<select name = "img[13]" onchange="check("small_1020-01.jpg")";><option value =" "> </option><option value = "1">1</option><option value = "2">2</option><option value = "3">3</option><option value = "4">4</option></select></p></div></div><div class="piede"><a href=index.php?categoria=2001&min_foto=1&max_foto= 12>1</a><input type="submit" value="Invia"> </form></div>
</body>
</html>