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ti posto l'html generato:

<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title></title>
<base target="_self">

<script language="javascript">

function closePop(num_colori) {
var f = document.form_colori;
var valore_selezionato=""
cont=1;
for (var i=1;i<=num_colori;i++) {
if (f.elements['colore'+i].checked) {
if (cont>1) {
alert("Attenzione, non puoi selezionare più di 2 colori!");
return false;
} else {
valore_selezionato = f.elements['colore'+i].value
cont++;
}
}
}
if(valore_selezionato!='')alert(valore_selezionato )
}

</script>
</head>


<body bgcolor="#FFFFFF" text="#000000" link="#000000" vlink="#000000" alink="#000000">

<form action="scheda-ordine-lenti.asp?id=11&codice_articolo=SPG AZ" method="post" name="form_colori">



<div align="center">
<center>
<table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; " bordercolor="#111111" width="450" id="AutoNumber1" height="39" bordercolorlight="#FF6600" bordercolordark="#FF6600">
<tr>
<td width="874" height="39" style="border-left-style: none; border-left-width: medium; border-right-style: none; border-right-width: medium; border-top: medium none #FF6600; border-bottom: medium none #FF6600" bordercolorlight="#FF6600" bordercolordark="#FF6600">
<p align="center"><font face="Verdana" color="#0061C1" size="2">

Seleziona il colore dell'articolo SPG AZ

</font><table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-width: 0" bordercolor="#111111" width="100%" id="AutoNumber2" height="150">
<tr>
<td width="8%" style="border-style: none; border-width: medium" align="center" height="27"></td>

<td width="45%" style="border-style: none; border-width: medium" height="27">
<p align="center"><font face="Verdana" size="1" color="#0061C1">
Descrizione</font></td>

<td width="11%" style="border-style: none; border-width: medium" height="27">
<p align="center"><font face="Verdana" size="1" color="#0061C1">
% Assorbimento
</font></td>
</tr>




<tr>
<td width="8%" style="border-style: none; border-width: medium" align="center" height="29">
<input type="checkbox" value="6" name="colore0" ></td>




<td width="45%" style="border-style: none; border-width: medium" align="center" height="29">
<font face="Verdana" size="2" color="#0061C1">azzurro pavone</font></td>
<td width="23%" style="border-style: none; border-width: medium" align="center" height="29">


<select size="1" name="assorbimento6">
<option value=""></option>



<option value="10">10</option>


<option value="10/0">10/0</option>


<option value="15">15</option>


<option value="15/0">15/0</option>


<option value="20">20</option>


<option value="20/0">20/0</option>


<option value="25">25</option>


<option value="25/0">25/0</option>


<option value="30">30</option>


<option value="30/0">30/0</option>


<option value="40">40</option>


<option value="40/10">40/10</option>


<option value="5">5</option>


<option value="50">50</option>


<option value="50/20">50/20</option>

</select>
</td>

</tr>



<tr>
<td width="8%" style="border-style: none; border-width: medium" align="center" height="29">
<input type="checkbox" value="420" name="colore1" ></td>




<td width="45%" style="border-style: none; border-width: medium" align="center" height="29">
<font face="Verdana" size="2" color="#0061C1">azzurro pavone</font></td>
<td width="23%" style="border-style: none; border-width: medium" align="center" height="29">


<select size="1" name="assorbimento420">
<option value=""></option>



<option value="10">10</option>


<option value="10/0">10/0</option>


<option value="15">15</option>


<option value="15/0">15/0</option>


<option value="20">20</option>


<option value="20/0">20/0</option>


<option value="25">25</option>


<option value="25/0">25/0</option>


<option value="30">30</option>


<option value="30/0">30/0</option>


<option value="40">40</option>


<option value="40/10">40/10</option>


<option value="5">5</option>


<option value="50">50</option>


<option value="50/20">50/20</option>

</select>
</td>

</tr>

</table>
<table border="1" cellpadding="0" cellspacing="0" style="border-width:0; border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber3">
<tr>
<td width="100%" colspan="2" style="border-style: none; border-width: medium"></td>
</tr>
<tr>
<td width="50%" style="border-style: none; border-width: medium" align="center">
<font face="Verdana" size="2" color="#0061C1">
<a href="javascript:chiudi()";>
<font color="#0061C1">Torna ai
prodotti</font></a></font></td>
<td width="50%" style="border-style: none; border-width: medium" align="center">
<font face="Verdana" size="2" color="#0061C1">

<a target="_self" href="#_" onclick="closePop('187');">
<font color="#0061C1">
Conferma i dati</font></a></font></td>
</tr>
<tr>
<td width="100%" colspan="2" style="border-style: none; border-width: medium"></td>
</tr>
</table>
</td>
</tr>
</table>
</center>
</div>
</body>
</form>
</html>