function  popup(page) {
    pop = window.open(page,"nom_popup","menubar=no, status=no, scrollbars=no, menubar=no, width=500, height=660");
    pop.focus();
}

$(document).ready(function(){
    $(".mp3").click(function(){
        popup("player-visites-mp3.php");
    });

    $(".mp3Box").click(function(){
        popup("player-visites-mp3.php");
    });
});