$(function() {
      var a = [
        "http://image.noelshack.com/fichiers/2016/18/1462600946-ruban.png", 
        "http://image.noelshack.com/fichiers/2017/20/1495136773-royaluniverse.png", 
      ];
     
      $("#pun-logo img,#i_logo,#logo img").attr("src", a[Math.floor(Math.random() * a.length)])
    });