function affiche()
{
    var gauche = document.getElementById('pubGauche');
    var droite = document.getElementById('pubDroite');

    gauche.style.display = "block";
    droite.style.display = "block";
    
    
    
    var centre = document.getElementById('center');

    var blocPub = document.getElementById('blocPub');
    blocPub.style.display = "block";

}

function cache()
{
    var gauche = document.getElementById('pubGauche');
    var droite = document.getElementById('pubDroite');

    gauche.style.display = "none";
    droite.style.display = "none";
    
    
    var centre = document.getElementById('center');

    
     var blocPub = document.getElementById('blocPub');
    blocPub.style.display = "none";
    
    
}

function checkLargeur()
{
    if(document.documentElement.clientWidth < 1470)
    {
        //alert("cache");
        cache();
    }
    else
    {
        //alert("affiche");
        affiche();
    }
}