function popupcentree(page,largeur,hauteur,options)
{
var top=(screen.height-hauteur)/2;
var left=(screen.width-largeur)/2;
window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}

function addToFavorites()
{
  if ( navigator.appName != 'Microsoft Internet Explorer' )
  { 
    window.sidebar.addPanel('Benault.com - Construction metallique','http://www.benault.com',""); }
  else { 
    window.external.AddFavorite('http://www.benault.com','Benault.com - Construction metallique');
  }
} 

function champsok()
{
if (document.questions.prenom.value.length == 0 | document.questions.nom.value.length == 0 | document.questions.societe.value.length == 0 | document.questions.adresse.value.length == 0 | document.questions.ville.value.length == 0 | document.questions.codepostal.value.length == 0 | document.questions.telephone.value.length == 0 | document.questions.email.value.length == 0 | document.questions.votremessage.value.length == 0 | document.questions.verif.value.length == 0)
{
alert("Merci de completer les champs obligatoires du formulaire");
return false;
} else {
if(document.questions.verif.value != document.questions.code.value) {
alert("Le code de vérification ne correspond pas ŕ celui de l'image.");
return false;
} else {
return true;
}
}
}