function VerifObjet(source, arguments) {
    
    var nom = document.getElementById("Pren_pers").value;
    var prenom = document.getElementById("Nom_pers").value;
    var tel = document.getElementById("NumTel_obj").value;
    var mail = document.getElementById("Mail_obj").value;
    var descrip = document.getElementById("Description_obj").value;
    
    if(nom == "" || prenom == "" || tel == "" || mail == "" || descrip == "")
        arguments.IsValid = false;
    else
        arguments.IsValid = true;
}