function e_friend() {
  var e_add= prompt('Enter your friend\'s email address:',' ');
  if ((e_add==" ") || (e_add==null)) {
    alert("You didn't enter an e-mail address");
  } else {
    var title = document.title
    var url = document.location.href;
    window.location="mailto:" + e_add + "?subject=Mt. Washington Cog Railway&body=%0A%0A" + title + "%0A" + url;
  }
}