how to check whether popup is blocked or not in chrome

Hi ,

     How to check whether popup is blocked or not in asp.net for chrome. This works fine for all browsers except chrome.

i searched lot of Query but no result can some one help with working sample.

 <scriptlanguage="javascript">
        function detectPopupBlocker(){
            debugger;
                var candidateWin;
                var savedTime =false;
                var valEmailID;
                var sort;
                var direction;
                var popupWin;
                var winWidth = screen.availWidth -6;  // account for scrollbar
                var winHeight = screen.availHeight -49;
                candidateWin = window.open('','candidateWin','width='+ winWidth +',height='+ winHeight +',top=0,left=0,menubar=no,resizable=yes,scrollbars=yes,status=no,toolbar=no,dependent=yes');

                if(!candidateWin || candidateWin.closed ||typeof candidateWin.closed =='undefined'){
                    alert('Popup blocked')
                }
                if(candidateWin) candidateWin.close();
         
                 }

    </script>

Regards,
sajith