function validation_form(){
    document.getElementById("alert1").innerHTML = '';
    document.getElementById("alert2").innerHTML = '';
    document.getElementById("alert3").innerHTML = '';
    document.getElementById("alert4").innerHTML = '';
    document.getElementById("alert5").innerHTML = '';
    valide = true;
    
    if (!verif_vide(document.fform.nom.value)) {
        valide = false;
        document.getElementById("alert1").innerHTML = '<div id="bbloc" class="float" style=" width:20px; height:20px;background-image: url(images/erreur.jpg)"></div>';
        
    }
    
    if (!verif_vide(document.fform.prenom.value)) {
        valide = false;
        document.getElementById("alert2").innerHTML = '<div id="bbloc" class="float" style=" width:20px; height:20px;background-image: url(images/erreur.jpg)"></div>';
        
    }
    if (!verif_vide(document.fform.Societe.value)) {
        valide = false;
        document.getElementById("alert4").innerHTML = '<div id="bbloc" class="float" style=" width:20px; height:20px;background-image: url(images/erreur.jpg)"></div>';
    }
    if (!verif_vide(document.fform.Info.value)) {
        valide = false;
        document.getElementById("alert5").innerHTML = '<div id="bbloc" class="float" style=" width:20px; height:20px;background-image: url(images/erreur.jpg)"></div>';
    }
    
    if (!verif_email(document.fform.email.value)) {
        valide = false;
        document.getElementById("alert3").innerHTML = '<div id="bbloc" class="float" style=" width:20px; height:20px;background-image: url(images/erreur.jpg)"></div>';
    }
    
    if (valide === true) {
        soumettre();
    }
}


function verif_vide(text){
    return (text.length > 0);
}

function verif_email(adresse){
    if ((adresse === "") ||
    (adresse.indexOf('@') == -1) ||
    (adresse.indexOf('.') == -1)) 
        return false;
    return true;
}

function active(){
    document.fform.soumission.focus();
}


function soumettre(){
  
    creerRequete();
     var nom =document.fform.nom.value;
	 var prenom =document.fform.prenom.value;
	 var email =document.fform.email.value;
	  var Societe =document.fform.Societe.value;
	 var Info =document.fform.Info.value;
    document.getElementById('CentreForm').innerHTML = '<div class="blocenvoyer"><div class="spaceblocB"></div><div class="blocenvoyerb" align="center"></div><div align="center"><span class="blocenvoyerbtext">Traitement</span><br></div></div>';
    var maVariable = "moi";
    var url = "enregistrement.php?p=" + maVariable;
    url = url + "&nom=" + nom + "&prenom=" + prenom + "&email=" + email + "&Societe=" + Societe + "&Info=" + Info;
    requete.open("GET", url, true);
    requete.onreadystatechange = actualiserform;
    requete.send(null);
    
}


function actualiserform(){
    if (requete.readyState == 4) {
        if (requete.status == 200) {
            var nouveauTotal = requete.responseText;
            document.getElementById('CentreForm').innerHTML = nouveauTotal
        }
    }
}