function open_window(url) {
    grumples = window.open(url,"grumples",
    'scrollbars=auto,resizable=0,menubar=0,toolbar=0,width=400,height=500');
  }


  function printInfo(user, domain) {
    var def_domain = "stefanobendandi.com";
    var info = "?subject=Informazioni";
    var email;
    //
    if (domain == null) {
      domain = def_domain;
    }

    email = user;
    email = email + "@";
    email = email + domain;
    document.write("<a href='mailto:" + email + info + "'>" + email + "</a>");
  }

  function printCorsi(user, domain) {
    var def_domain = "stefanobendandi.com";
    var info = "?subject=Informazioni su corso";
    var email;
    //
    if (domain == null) {
      domain = def_domain;
    }

    email = user;
    email = email + "@";
    email = email + domain;
    document.write("<a href='mailto:" + email + info + "'>" + email + "</a>");
  }