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        body = body.replace(/\s+$/, "");
        clean.push(body);
      }
      if (clean.length) lines.push(
        clean.join(" ").replace(/\n/g, "").escapeHTML());
    });
    node.update(lines.join("<br>"));
    node.cleanWhitespace();
  },

  epochToLocal: function(epoch, format) {
    var date = new Date(parseInt(epoch) * 1000);
    if (!date) return epoch;

    var hours = date.getHours();

    if (format == "12") {
      var ap;
      if (hours >= 12) {
        if (hours > 12) hours -= 12;
        ap = "p";
      } else {
        ap = "a"
      }
      return sprintf("%d:%02d%s", hours, date.getMinutes(), ap);
    }

    return sprintf("%02d:%02d", hours, date.getMinutes());
  },

  makeLinksClickable: function(elem) {
    var children = elem.childNodes;
    var length = children.length;

    for (var i=0; i < length; i++) {
      var node = children[i];
      if (node.nodeName != "#text") {
        Alice.makeLinksClickable(node);
      }
      else if (node.nodeValue.match(Alice.RE.url)) {
        var span = new Element("SPAN");
        span.innerHTML = node.nodeValue.escapeHTML().replace(
          Alice.RE.url, '<a href="$1" target="_blank" rel="noreferrer">$1</a>');
        node.parentNode.replaceChild(span, node);
      }
    }
  },

  growlNotify: function(message) {
    if (window.fluid) {
      window.fluid.showGrowlNotification({
        title: message.subject,
        description: message.body,
        priority: 1,
        sticky: false,
        identifier: message.msgid
      });
    }
    else if (window.webkitNotifications) {
      if (window.webkitNotifications.checkPermission() == 0) {
        var popup = window.webkitNotifications.createNotification(
          "http://static.usealice.org/image/alice.png",
          message.subject,
          message.body
        );

        popup.ondisplay = function() {
          setTimeout(function () {popup.cancel();}, 5000);
        };

        popup.show();
      }
    }
  },

  isSpecialKey: function(keyCode) {
    var special_keys = [
			16,27,9,32,13,8,145,20,144,19,45,36,46,35,33,34,37,38,39,
			40,17,18,91,112,113,114,115,116,117,118,119,120,121,122,123,
      224
		];
		return special_keys.indexOf(keyCode) > -1;
  },

  playAudio: function(image, audio) {
    image.src = '/static/image/pause.png';
    if (! audio) {
      var url = image.nextSibling.href;
      audio = new Audio(url);
      audio.addEventListener('ended', function () {
        image.src = '/static/image/play.png';
        image.onclick = function () { Alice.playAudio(image, audio) };
      });
    }
    audio.play();
    image.onclick = function() {
      audio.pause();
      this.src = '/static/image/play.png';
      this.onclick = function () { Alice.playAudio(this, audio) };
    };
  },

  joinChannel: function() {
    var network = $('join_network').value;
    var channel = $('join_channel').value;
    if (!network || !channel) {
      alert("Must select a channel and network!");
      return;
    }
    var win = alice.activeWindow();
    alice.connection.sendMessage({
      source: win.id,
      msg: "/join -"+network+" "+channel
    });
    alice.input.disabled = false;
    $('join').remove();
  },

  tabsets: {
    addSet: function () {
			var name = prompt("Please enter a name for this tab set.");
      if (name && !Alice.tabsets.hasTabset(name)) {
        Alice.tabsets.clearActive();
        $('sets').insert('<li class="active">'+name.escapeHTML()+'</li>');
        var list = $('empty_tabset').clone(true).addClassName('active').show();
        list.id = null;
        $('tabset_data').insert(list);
      }
      else {
        alert("Invalid tab set name.");
      }