function GetTheBaseUrl() {
var RootFullUrl = _root._url;
txtFullUrl.text = RootFullUrl;
var lastSlashIndex:Number = RootFullUrl.lastIndexOf("/");
var DriveIndex:Number = RootFullUrl.indexOf("|");
 
if (DriveIndex>=0) {
baseUrl = RootFullUrl.substring(0, DriveIndex);
baseUrl += ":";
} else {
baseUrl = "";
}
baseUrl += RootFullUrl.substring(DriveIndex+1, lastSlashIndex+1);
txtBaseUrl.text = baseUrl;
return baseUrl;
}
 
var BaseURL:String= GetTheBaseUrl();

txtFullUrl.text = this.loaderInfo.url;
 
var FullUrl:String = this.root.loaderInfo.url;
var lastSlashIndex:Number = FullUrl.lastIndexOf("/");
var DriveSepIndex:Number = FullUrl.indexOf("|");
 
var baseUrl:String;
if (DriveSepIndex >= 0) {
baseUrl = FullUrl.substring(0, DriveSepIndex);
baseUrl += ":";
} else {
baseUrl = "";
}
baseUrl += FullUrl.substring(DriveSepIndex + 1, lastSlashIndex + 1);
txtBaseUrl.text = baseUrl;