Selection double d'un produit dans une

C'est exactement ce que je t'ai expliqué, où en est ton code (html et js) ?

mon code est fait purement de php et kelke js, il est assez long mai je te donne la partie du code php qui afiche les donnée du produit selectionné et ainsi recupere si il é selectionné ou pa:

//je recupere le nombre de ligne et ainsi la ligne en cour:
else if ($action=='select'){
$i=1;
$nbligne=$_POST['nbligne'];
while ($i<=$nbligne){
$desig="desig".$i;
$sel="sel".$i;
$qnte="qnte".$i;
$descr="descr".$i;
$qntes="qntes".$i;
$pu="pu".$i;
$tva="tva".$i;
$$desig=$_POST[$desig];
$$sel=$_POST[$sel];
$$qnte=$_POST[$qnte];
$$descr=$_POST[$descr];
$$qntes=$_POST[$qntes];
$$pu=$_POST[$pu];
$$tva=$_POST[$tva];
$i++;
}
$ligne=$_REQUEST['ligne'];
$desig="desig".$ligne;
$sel="sel".$ligne;
$$sel=$_POST[$sel];
echo $$sel;
$$desig=$_POST[$desig];
$desigg=$$desig;
$sele=$$sel;
if (($ligne>=2) && ($$desig="selected=\"selected\"") && ($$desig="selected=\"selected\"")){
echo "<script type='text/javascript'>alert('Ce Produit est deja selectionné!Selectionné un autre produit');</script>";
$$desig=="";
}
else {
$desigg=$$desig;

$sql = " SELECT * FROM produitsm WHERE cod_pro='$desigg' ";
$result = mysql_query($sql) or die("Requete Incorecte!");
$cod_pro="cod_pro".$ligne;
$desig="desig".$ligne;
$descr="descr".$ligne;
$qntes="qntes".$ligne;
$qnte="qnte".$ligne;
$pu="pu".$ligne;
$tva="tva".$ligne;
while ($rows= mysql_fetch_array($result))
{
$$desig=$rows['cod_pro'];
$$cod_pro=$rows['cod_pro'];
$$descr=$rows['descr'];
$$qntes=$rows['qntes'];
$$pu=$rows['pu'];
$$tva=$rows['tva'];
}
CalculTotal($nbligne);
}



et la fonction js est la suivante:

function affiche(j){
var client=document.form1.nom.value;
if (client.length==0){
alert ("Vous devez d'abord selectionnez un client!");
document.form1.nom.focus();
}
else {
nbligne=document.form1.nbligne.value;
MyForm=document.form1;
MyForm.methode="POST";
MyForm.action="?categorie=admin&page=addfactures&action=select&nbligne="+nbligne+"&ligne="+j;
MyForm.submit();
}
}

et la partie daffichage du tableau est la suivante:

<table align="center" width="751" border="0" bordercolor="#BEDFFA">

<tr>
<td colspan="2"><div align="right">
<b>Produit:</b>
Matériel  /   

<a href="?categorie=admin&page=addfactures1">Logiciel</a>
</div>
</td>
<td><div align="right"><b>Date :</b>
<input name="date_fac" type="text" id="date_fac" readonly size="10" value='.$date_fac.'></input>
</div></td>
</tr>
<tr>
<td colspan="3"><b>Client :</b>   
<select name="nom" size="1" id="nom" onchange="selecte()">
<option value="">-Select-</option>';
while ($row=mysql_fetch_array($result1))
{
if ($nom==$row['cod_cli']){
echo"<option value=".$row[cod_cli]." SELECTED='SELECTED'>$row[nom]</option>";
}
else {
echo"<option value=".$row[cod_cli].">$row[nom]</option>";
}
}
echo'</select></td>
</tr>
<tr>
<td colspan="3">
Adresse : 
<input name="adresse" type="text" id="adresse" readonly size="20" maxlength="200" value="'.$adresse.'"></input>
   RC :          
<input name="RC" type="text" id="RC" readonly size="20" maxlength="20" value="'.$RC.'"></input> 
                               BC N° : 

<select name="num_c" size="1">
<option value="">-Select-</option>';

while ($row=mysql_fetch_array($res))
{
if ($num_c==$row['num_c']){
echo"<option value=".$row[num_c]." SELECTED='SELECTED'>$row[num_c]/$row[date_c]</option>";
}
else {
echo"<option value=".$row[num_c].">$row[num_c]/$row[date_c]</option>";
}
}
echo'</select> </td>
</tr>
<tr>
<td colspan="3">
N.I.S :     
<input name="NIS" type="text" readonly size="20" maxlength="20" value="'.$NIS.'"></input>
   N° Article : 
<input name="ART" type="text" readonly size="20" maxlength="20" value=""'.$ART.'"></input> </td>
</tr>
<tr>
<td colspan="3">
<table width="100%" border="1" bordercolor="#BBDAFF" cellspacing="0" cellpadding="0">
<tr>
<td width="6%"></td>
<td width="12%" bgcolor="#C9D7FC"><div align="center"><b>Produits</b></div></td>
<td width="36%" bgcolor="#C9D7FC"><div align="center"><b>Description</b></div></td>
<td width="12%" bgcolor="#C9D7FC"><div align="center"><b>Qte. Stock</b></div></td>
<td width="11%" bgcolor="#C9D7FC"><div align="center"><b>Qte.Cmdée</b></div></td>
<td width="12%" bgcolor="#C9D7FC"><div align="center"><b>Prix</b></div></td>
<td width="11%" bgcolor="#C9D7FC"><div align="center"><b> TVA </b></div></td>
</tr>
<tr>
<td><input type="hidden" name="nbligne" id="nbligne" value='.$nbligne.'></input></td></tr>
<tr>
<td height="18"><div align="center">
<img src="images/tab-close.png" style="cursor:pointer" onclick="suppression(1)" /> 1</div></td>
<td><div align="left">
<select name="desig1" size="1" onchange="affiche(1);">
<option value="">-Select-</option>';

while ($row=mysql_fetch_array($result2))
{
if ($desig1==$row['cod_pro']){
echo"<option value=".$row[cod_pro]." SELECTED='SELECTED'>$row[desig]</option>";
}
else {
echo"<option value=".$row[cod_pro].">$row[desig]</option>";
}
}
echo'</div><input name="sel1" type="hidden" id="sel1" value="'.$desig1.'"></input>
</td>
<td><div align="center">
<input name="descr1" type="text" id="descr1" readonly size="45" maxlength="200" value="'.$descr1.'"></input></div>
</td>
<td><div align="center">
<input name="qntes1" type="text" id="qntes1" readonly size="9" maxlength="10" value="'.$qntes1.'"></input></div>
</td>
<td><div align="center">
<input name="qnte1" type="text" id="qnte1" size="9" maxlength="10" onblur="verifQntes(1)" value="'.$qnte1.'"></input></div>
</td>
<td><div align="center">
<input name="pu1" type="text" id="pu1" readonly size="9" maxlength="10" value="'.$pu1.'"></input></div>
</td>
<td><div align="center">
<input name="tva1" type="text" id="tva1" readonly size="9" maxlength="4" value="'.$tva1.'"></input></div>
</td>
</tr>';

$j=2;
while ($j<=$nbligne){
$cod_pro="cod_pro".$j;
$qnte="qnte".$j;
$descr="descr".$j;
$qntes="qntes".$j;
$pu="pu".$j;
$tva="tva".$j;
$desig="desig".$j;
echo '<tr id="ligne_fac">
<td height="18"><div align="center">
<img src="images/tab-close.png" style="cursor:pointer" onclick="suppression('.$j.')"/> '.$j.'</div></td>
<td><div align="left">
<select name="desig'.$j.'" id="desig'.$j.'" size="1" onchange="affiche('.$j.');">
<option value="">-Select-</option>';
$sql = " SELECT * FROM produitsm ORDER BY desig";

$result = mysql_query($sql) or die("Requete Incorecte!");
while ($row=mysql_fetch_array($result))
{
if ($$desig==$row['cod_pro']){
echo"<option value=".$row[cod_pro]." SELECTED='SELECTED'>$row[desig]</option>";
}
else {
echo"<option value=".$row[cod_pro].">$row[desig]</option>";
}
}
echo'</div><input name="sel'.$j.'" type="hidden" id="sel'.$j.'" value="'.$$desig.'"></input>
</td>
<td><div align="center">
<input name="descr'.$j.'" type="text" id="descr'.$j.'" readonly size="45" maxlength="200" value="'.$$descr.'"></input></div>
</td>
<td><div align="center">
<input name="qntes'.$j.'" type="text" id="qntes'.$j.'" readonly size="9" maxlength="10" value="'.$$qntes.'"></input></div>
</td>
<td><div align="center">
<input name="qnte'.$j.'" type="text" id="qnte'.$j.'" size="9" maxlength="10" onblur="verifQntes('.$j.')" value="'.$$qnte.'"></input></div>
</td>
<td><div align="center">
<input name="pu'.$j.'" type="text" id="pu'.$j.'" readonly size="9" maxlength="10" value="'.$$pu.'"></input></div>
</td>
<td><div align="center">
<input name="tva'.$j.'" type="text" id="tva'.$j.'" readonly size="9" maxlength="4" value="'.$$tva.'"></input></div>
</td>
</tr>';
$j++;
}

echo '</table>
<label><div id="msg"><a href="#" name="add_lig" onclick="ajouter_ligne()">Ajouter ligne</a></div>
</label></td>
</tr>
<tr>
<td colspan="3"> </td>
</tr>
<tr>
<td colspan="2"> </td>
<td width="231"><div align="right"><table width="100%" border="0" align="right">
<tr>
<td width="44%" ><b>Total HT </b></td>
<td width="56%"><label><input name="MNTHT1" type="text" id="MNTHT1" size="15" value='.$MNTHT1.'></input> <b>DA</b></label></td>
</tr>
<tr>
<td ><b>Total TVA </b></td>
<td><label><input name="MNTVA1" type="text" id="MNTVA1" size="15" value='.$MNTVA1.'></input> <b>DA</b></label></td>
</tr>
<tr>
<td ><b>Total TTC</b></td>
<td><label><input name="TTC1" type="text" id="TTC1" size="15" value='.$TTC1.'></input> <b>DA</b></label></td>
</tr>
</table>

Ce code reste relativement illisible (où sont les commentaires ?) ; t'as une version en ligne quelque part ? Un exemple de scénario de facturation ?