function changeImgBandeau(){
    var trub = $('.referent .Trub_2').attr('rel');
    $.ajax({
        type: "POST",
        url: "/background_accueil_css.php",
        data: {'trub':trub},
        success: function(msg){
            
            //alert( "Mis à jour: " + msg );
            $('.header').attr('style', msg);
        }
    });
    
    window.setTimeout('changeImgBandeau()', 8000);
}

$(document).ready(function(){

    changeImgBandeau();
});