[flexcoders] Import air.net.URLMonitor

[timgerr]

Hello all,
I am creating a app and I have to see if I can connect to the url.  I
found some code
(http://livedocs.adobe.com/flex/3/html/help.html?content=network_connectivity_1.html):
import air.net.URLMonitor;
import flash.net.URLRequest;
import flash.events.StatusEvent;

var monitor:URLMonitor;
monitor = new URLMonitor(new URLRequest('http://www.adobe.com'));
monitor.addEventListener(StatusEvent.STATUS, announceStatus);
monitor.start();

function announceStatus(e:StatusEvent):void {
    trace("Status change. Current status: " + monitor.available);
}

It says that I need to import air.net.URLMonitor;.  Can I use air
stuff in a we app, and if so how do I get the air.net.URLMonitor part?

Thanks,
Timgerr