Calling PopUpManager from a class in a library

Question

I have a class for logins that I have put in a Flex Library
Project.
Part of the login is a popup form(mxml) I have created and is
in the library.
The problem I have is this line:
loginPopUp =
LoginForm(PopUpManager.createPopUp(this,LoginForm,true));
The error I get is:
1067: Implicit coercion of a value of type
dataManagers:LoginManager to an unrelated type
flash.display:DisplayObject.
The parent “this” is no good since its parent
should be the application that called the logon.
Can I reference the caller from the LoginManager class I
created to feed to popupmanager as the parent for the popup?
The code in the app using the llibray that relates to this
(to save space) is:
import dataManagers.LoginManager
public var lm:LoginManager = new LoginManager();
lm.initServices();
//LoginManager.as
package theLoginManager {
import flash.events.Event;
import mx.managers.PopUpManager;
public class LoginManager {
import LibraryViews.Login.LoginForm;
public var loginPopUp:LoginForm;
public function initServices() : void
Alert.show("Login start");
appCFC = new RemoteObject("ColdFusion");
appCFC.source = "CFC.Users.usersGateway";
appCFC.addEventListener(FaultEvent.FAULT, server_fault);
appCFC.init.addEventListener(ResultEvent.RESULT,init_result);
appCFC.getById.addEventListener(ResultEvent.RESULT,getById_result);
displayLogin()
private function displayLogin():void{
loginPopUp =
LoginForm(PopUpManager.createPopUp(this,LoginForm,true));//THIS IS
THE PROBLEM LINE
loginPopUp.addEventListener("loginSuccessful",
removeLoginPopup);
//Removes login form
private function removeLoginPopup(event:Event):void{
PopUpManager.removePopUp(loginPopUp);
}//End Class
}//End Package
//LoginForm.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:Form width="100%" height="100%"
defaultButton="{loginBTN}">
<mx:FormItem width="100%" label="Username"
required="true">
<mx:TextInput id="email"
width="175" text="mltv"/>
</mx:FormItem>
<mx:FormItem width="100%" label="Password"
required="true">
<mx:TextInput id="password"
displayAsPassword="true"
width="175" text="nuffer"/>
</mx:FormItem>
<mx:VBox width="100%" horizontalAlign="center">
<mx:Button id="loginBTN" label="Login"
click="authenticateUser();" fillColors="[#80ff00, #80ff00]"/>
</mx:VBox>
</mx:Form>
</mx:TitleWindow>

Answer 1

I solved it by passing the parent when I called it from the
parent project:
lm.initServices(this);
and then created a var in the .as file:
private var theCallingParent:DisplayObject;
theCallingParent = theParent;
Then used that variable when I called the popup:
loginPopUp =
LoginForm(PopUpManager.createPopUp(theCallingParent,LoginForm,true));
Sorry to clog up the board.