Flex and coldfusion login

Can someone tell me how I can create a popup login system
using a coldfusion mx 7 backend. thank you.

Check credentials then remove pop up? How can I remove the
Popup login box after successful login? please help me...
private function handleLoginSucess(eventObj:Event):void {
//Get the member object from the LoginForm component
PopUpManager.removePopUp(this)
LoginForm.mxml
public function
resultGetMemberByUserNameAndPassword(event:ResultEvent):void {
//used for debugging - shows details about result
//returned by the CFC method
//Alert.show( ObjectUtil.toString(event.result) );
/*result returned is a Member object
cast the result returned to a Member class
and assign it to our Member object*/
__member = event.result as Member ;
//remove text in the login input fields
username.text="";
password.text="";
// Define event object, initialize it, then dispatch it.
dispatchEvent(new Event("loginSuccess"));
PopUpManager.removePopUp(this)
} //end function getMemberByUserNameAndPassword
private function processLogin():void {
//change state back to the default so the errorLogin state
doesn't appear again
currentState = '';
//Alert.show("Processing Login...");
MemberService.getMemberByUserNameAndPassword(username.text,
password.text);
}//end function processLogin
}

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