// Javascript version
// wind = wind speed in knots
// temp = temperature in Celsius
function getWindChill(wind, temp) {
   wind = wind * 1.852;
   var wind2 = Math.pow(wind, 0.16);
   var wind_chill = (13.12 + 0.6215 * temp - 11.37 * wind2 + 0.3965 * temp * wind2);
   wind_chill = parseFloat(wind_chill.toFixed(2));
   wind_chill = (wind <= 4.8) ? temp : wind_chill;
   wind_chill = (temp > 10) ? temp : wind_chill;
   return wind_chill;
}

// PHP version
// wind = wind speed in knots
// temp = temperature in Celsius
function getWindChill($wind, $temp) {
   $wind = $wind * 1.852;
   $wind2 = pow($wind, 0.16);
   $wind_chill = (13.12 + 0.6215 * $temp - 11.37 * $wind2 + 0.3965 * $temp * $wind2);
   $wind_chill = round($wind_chill, 2);
   $wind_chill = ($wind <= 4.8) ? $temp : $wind_chill;
   $wind_chill = ($temp > 10) ? $temp : $wind_chill;
   return $wind_chill;
}

# Ruby version
# wind = wind speed in knots
# temp = temperature in Celsius
def getWindChill(wind, temp)
   wind = (wind * 1.852)
   wind2 = wind**0.16
   wind_chill = (13.12 + 0.6215 * temp - 11.37 * wind2 + 0.3965 * temp * wind2)
   (temp > 10) ? temp : (wind <= 4.8) ? temp : (wind_chill * 100).round.to_f / 100
end

As you can see, pretty simple, but hopefully one will prove useful to someone someday.

1. First things first, you need to download and install Fluid. You can do this by visiting http://fluidapp.com. After installing it, fire up the app.
2. Second off, we now need to create our SSB instance. For the URL, enter in

   http://webmessenger.yahoo.com

   For the name use something like Yahoo! Web.IM or whatever else strikes your fancy. The icon you can download from here. Click create and you are all set.

3. Next we can fire up the application. It should live inside your applications folder just like any other desktop app. You use Quicksilver right?
4. Now that the app is running, you can see the normal login screen of Web.IM and if you like, sign in just as a test.
5. Next comes the real powerful part. We need to create a new “userscript” which will add advanced functionality over what a normal browser experience provides. We do this by clicking on the Userscripts menu and then selecting “New Userscripts…”, or you can use Cmd-Option-N if you are a keyboard shortcut lover like me. Type in a meaningful name, I used WebIM, and then a new script editor opens. Paste the following code into the window replacing what was there already and then save and close the script editor.

   // ==UserScript==
   // @name        WebIM
   // @namespace   http://www.jeremyjohnstone.com
   // @description Enables advanced notifications and disables ads
   // @include     *
   // @author      Jeremy Johnstone
   // ==/UserScript==
   
   (function () {
       if (window.fluid) {
   			// unread is a bit of misnomer, because we clear this
   			// as soon as the window regains focus, not when you
   			// actually read the IM (TODO: telepathy enabled?)
   			var unreadIMCount = 0;
   
   			// store the state of the user being active
   			var activeState = true;
   
   			// I don't want ads in my IM client
   			window.showAd = function(locale) { }
   
   			// When the window regains focus, clear the unread IM count
   			// Also save the state for other functions
   			window.onfocus = function() {
   				activeState = true;
   				unreadIMCount = 0;
   				window.fluid.dockBadge = "";
   			}
   			window.onblur = function() {
   				activeState = false;
   			}
   
   			// disabling this turns off the normal new IM
   			// notification (aka the scrolling title message)
   			window.startNotify = function(msg) { }
   
   			// Here we latch into the advancedNotify which
   			// splits out the yid from the msg separately
   			window.advancedNotify = function(yid, msg) {
   				// We don't want to show growl alerts if the
   				// user is active already
   				if(activeState) return;
   
   				msg = unescape(msg);
   				window.fluid.showGrowlNotification({
   					title: "New Message from: " + yid,
   					description: msg,
   					priority: 1,
   					sticky: false,
   					identifier: null,
   					onclick: null
   				});
   
   				// Now we increment the unread IM count and then
   				// set the dockBadge to be the number of unseen IMs
   				unreadIMCount++;
   				window.fluid.dockBadge = unreadIMCount;
   			}
   
   			// Instead of blowing away the cookies going to login,
   			// Let's just close the app instead
   			window.exit = function(url) {
   				// seems neither of these work... hmmm..
   				// fluid bug???
   				window.fluid.terminate();
   				window.fluid.hide();
   			}
       }
   })();
   

6. Finally, not sure this is needed, but I found it easiest to quit the app and restart it as that way you know for sure your script got loaded right. Probably not needed, but always safer. Also check the Userscripts menu and you should see a menu option for your new script. Make sure there is a check mark next to it. If so, go ahead and sign in as usual.

That’s it! You now have a new Web Messenger client inside it’s own browser tab with the following new features:

• Growl Notifications for IMs received when the app isn’t in focus
• Dock Badge updates with the count of unread IMs received
• No advertising banners shown

My hope is that I can get the author of Fluid to add a couple more improvements which will make it even better as well as hopefully fix what I think is a bug with hide() and terminate() not working. With dock icon bouncing and a separate cookie jar for each application this will be immensely useful, IMHO.

Here’s a little video tutorial taking you through the steps above.

Enjoy!

-Jeremy

var myObj = function() {
    // private instance variables
    var foo = 33;

    // pseudo static initializer
    var staticInitializer = function() {
        // do some code here, will run only once
    }();

    // private method
    function foobar() {
        // do something
    }

    // public api
    return {
        publicMethod: function() {
            // do something
        },

        publicVariable: 42,

        publicMethod2: function() {
             // do something
        }
    }
}();

None of the above was new to me, but I had never seen it put all together like that. I liked it enough that I’ve adopted it as my preferred pattern for JS code going forward. Now, once I get the PHP code looking respectable I can finally sleep a little better at night!

Update:
Yes, the Eden team is the same team which is developing myM, and no, I won’t get you an invite (not this year at least).