Image at left desktop not center when use fullcreen??

Question

hi. I'm building fullscreen button. and when i click to run fullscreen image it in left not center.
background  image in application i make it by skinclass. it run normal and at  center desktop when run but when click fullsreen it not
and fullscreen:
    private function init():void {
                fullScreenState = stage.displayState;
            private function btn_click(evt:MouseEvent):void {
                if (btn.selected) {
                    fullScreenState = StageDisplayState.FULL_SCREEN;
                } else     {
                    fullScreenState = StageDisplayState.NORMAL;
                try {
                    stage.displayState = fullScreenState;
                } catch (any:*) {
and button:
<s:ToggleButton id="btn"            
                        click="btn_click(event);"
                        width.trangchu="121" x.trangchu="401" y.trangchu="-27" height.trangchu="95" />
Can u help me please?

Answer 1

I posted that work around on the google forums and it actually came from the Apple forums from users 'Society Girl' and refined by 'spiza' from this thread.
Google Reverted to Old Layout
I called a friend at a tech magazine and he *cough* unofficially* cough* said via contacts it was a very deliberate move by Google... nothing to do with their upgrades or a hack coincidentally not working as a by product with old browsers.
oh boy...
'Google flushes out users of old browsers by serving up CLUNKY, AGED version of search'
'Ad giant: Yeah, we did that deliberately'
In a separate thread, as spotted by a Reg reader who brought this sorry affair to our attention, user MadFranko008 was able to show that even modern browsers - including the current version of Chrome - were apparently spitting out glitches on Apple Mac computers.
Google then appeared to have resolved the search "bug" spotted in Chrome.
http://www.theregister.co.uk/2014/08/31/google_search_browser_support/
and on the BBC website...
Google 'discourages' users of old browsers
Google has started showing old versions of its search page to people using out-of-date versions of some web browsers.
The problem was most pronounced among those using variants of Safari 5.1 and Opera 12.
A Google message posted to the forum said the change was made to "encourage" people to upgrade their browser
http://www.bbc.co.uk/news/technology-29012038
Google and Apple are not the best of friends...
I expect this will run a little longer