function visu_produit(n) {
m=1;
while (m < compteur_visu) {
$('img_prod' + m).setStyle('display','none');
m = m+1;
}
$('img_prod' + n).setStyle('opacity','0');
$('img_prod' + n).setStyle('display','block');
var instance = new Fx.Styles($('img_prod' + n), {duration: 900});
instance.custom({'opacity': ['0','1']});
}

function prod_tarif(n,m){
var cal_tarif=n.options[n.options.selectedIndex].value * m;
$('prix_prod').setHTML(cal_tarif + ' &euro;');
}

function support_list(n,m){
  if (n.options[n.options.selectedIndex].value!="0") {
    $('support').setHTML('Chargement ...');
    $('taille').setHTML('');
    new ajax('support_list.php',{postBody:Object.toQueryString({prod: m, coupe: n.options[n.options.selectedIndex].value}) , update:'support'}).request();
  }
}

function taille_list(k,n,m){
  if (k.options[k.options.selectedIndex].value!="0" && n.options[n.options.selectedIndex].value!="0") {
    $('taille').setHTML('Chargement ...');
    new ajax('taille_list.php',{postBody:Object.toQueryString({prod: m, coupe: n.options[n.options.selectedIndex].value, taille: k.options[k.options.selectedIndex].value}) , update:'taille'}).request();
  }
}

function valider_prod() {
  if(document.getElementById('control_prod').value == "0") {
  alert('taille non renseignée !');
  }
  else {
  document.form_prod.submit();
  }
}

function etape1() {
  $('bt_panier').setStyle('display','none');
  var instance = new Fx.Styles($('etape1'), {duration: 400});
  instance.custom({'opacity': ['0','1']});
}

function pays_list(l1,l2) {
  var valeur;
  valeur=Math.round((parseFloat(l2) + parseFloat(l1.options[l1.options.selectedIndex].value)) * 100)/100;
  $('total_cmd').setHTML('<strong>' + valeur + '.00</strong>');
  if (l1.options[l1.options.selectedIndex].value ==0) {
  $('frais').setHTML('<strong>' + l1.options[l1.options.selectedIndex].value + '</strong>');
  $('etat_label').setStyle('display','none');
  }
  else {
  $('frais').setHTML('<strong>' + l1.options[l1.options.selectedIndex].value + '</strong>');
  $('type_paiement_label').setHTML('<span>paiement : </span>Paypal<input name=\"type_paiement\" type=\"hidden\" value=\"2\" />');
  }
  $('etape1').setStyle('display','none');
  document.getElementById('pays').value=l1.options[l1.options.selectedIndex].text;
  document.getElementById('pays_code').value=l1.options[l1.options.selectedIndex].value;
  document.getElementById('somme_cmd').value=valeur;
  var instance = new Fx.Styles($('recap2'), {duration: 400});
  instance.custom({'opacity': ['0','1']});
  var instance2 = new Fx.Styles($('etape2'), {duration: 400});
  instance2.custom({'opacity': ['0','1']});
  var instance3 = new Fx.Styles($('frais_port'), {duration: 400});
  instance3.custom({'opacity': ['0','1']});
}

function formulaire_client() {
var test=true;
  if(document.getElementById('nom').value == "") {
  test=false;
  $('nom').setStyle('background-color','#FF0000');
  }
  else {
  $('nom').setStyle('background-color','#ffffff');
  }
  if(document.getElementById('prenom').value == "") {
  test=false;
  $('prenom').setStyle('background-color','#FF0000');
  }
  else {
  $('prenom').setStyle('background-color','#ffffff');
  }
  if(document.getElementById('email').value == "") {
  test=false;
  $('email').setStyle('background-color','#FF0000');
  }
  else {
  $('email').setStyle('background-color','#ffffff');
  }
  if(document.getElementById('adresse').value == "") {
  test=false;
  $('adresse').setStyle('background-color','#FF0000');
  }
  else {
  $('adresse').setStyle('background-color','#ffffff');
  }
  if(document.getElementById('code_p').value == "") {
  test=false;
  $('code_p').setStyle('background-color','#FF0000');
  }
  else {
  $('code_p').setStyle('background-color','#ffffff');
  }
  if(document.getElementById('ville').value == "") {
  test=false;
  $('ville').setStyle('background-color','#FF0000');
  }
  else {
  $('ville').setStyle('background-color','#ffffff');
  }
  if(document.getElementById('pays').value == "") {
  test=false;
  $('pays').setStyle('background-color','#FF0000');
  }
  else {
  $('pays').setStyle('background-color','#ffffff');
  }
  if(test==false) {
  alert('champs non renseignés ')
  }
  else {
  document.getElementById('test_cmd').value=1;
  document.formulaire.submit();
  }
}