Getting my application domain

Question

Been searching all morning trying to find a example of the ApplicationDomain funciton in Flash AS3. So far none have given me the desired result. I am trying to retrieve the domain my swf is running in only. I need to set variables (STRINGS) according to the domain address. Since Flash shows the actual url + the swf this is almost what I want. I have a html page that launchs at a address... http://.... myDomain.html. In there I have a link to a swf that is located in the folder mySWF. Because the html page is linked to the root location when I pass in the path to my data folder ... the return is http://....myDomain/mySWF/data.
I've been studing up on the Funciton ApplicationDomain. But I can't figure how to extract my location url of where the swf is running. Can anyone direct me to an example?
If not able, I could search the url string and remove the app.swf from the path, but there must be an easier way.
THANKS

Answer 1

GREAT ANSWERS... this helped allot. Now I can easly append the path to the various folders I use for video, data, etc.
kglad here is a modified code based on your answer.
var s:String=this.loaderInfo.url
var myFolder:String = s.substring(0,s.lastIndexOf("/")) + "/subFolder/";
trace(myFolder);
kennethkawamoto2 here is a modified code based on your answer.
(myFolder is defined above)
var path:String = this.loaderInfo.url.substr(0, loaderInfo.url.lastIndexOf("/") + 1);
myFolder = path + "subFolder/";
trace(myFolder);
The difference in the two are one returns the string without the "/" at the end and the other returns the "/" at the end. I was only able to answer one correct response and I'm sorry I could not answer both of them.
Here is what I came up with on the replace function: _Global is a AS file I have defined. But I like your answers better and will use them.
_Global.pathLink = this.loaderInfo.url;
_Global.pathLink = _Global.pathLink.replace("/test.swf", "/");
trace("Path = ", _Global.pathLink);
THANK YOU BOTH for helping out of this jam.