[flexcoders] I got the the value when using "trace", but failed when make a comparison

[Jati Putra]

Dear All,
Please check this code, what is the problem?

AS3 :
public function validateLogin(e:String):void{
                trace(e);
                if('OK' == e){
                    mx.controls.Alert.show("OK");
                    //navigateToURL(tujuan,'_self');
                }else{
                    mx.controls.Alert.show("FALSE");
                    //po.text="Username or Password WRONG";
                }
            }


MXML: 

<mx:HTTPService id="login_srv" url="http://localhost/flex/session.php"; 
method="POST" result="validateLogin(String(event.result))">
        <mx:request>
            <username>{username_checked}</username>
            <password>{password_checked}</password>
        </mx:request>
    </mx:HTTPService>


The "trace" value is "OK" but in the if statement the app always show alert in 
"False".

Thanks

       
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