無法用googlemap關閉infowindow

Question

var markers = {}; 
var openedInfoWindow = null;  

function addDoctorLocation(options) 
{ 
    var gm = Ext.getCmp('mygooglemap'); 
    var mpoint = new google.maps.LatLng(options.lat,options.lng); 
    var marker = gm.addMarker(mpoint,options.marker,false,false, options.listeners); 
    markers[options.MainID] = marker; 

    infowindow = new google.maps.InfoWindow({ 
    content: "Hello from this marker" 
    }); 
    google.maps.event.addListener(marker, 'click', function() { 
     if (openedInfoWindow != null) openedInfoWindow.close(); // <-- changed this 
     infowindow.open(map, marker); 
     // added next 4 lines 
     openedInfoWindow = infowindow; 
     google.maps.event.addListener(infowindow, 'closeclick', function() { 
      openedInfoWindow = null; 
     }); 
    }); 
} 

當點擊infowindow關閉按鈕時，什麼也沒有發生。
當點擊標記將收到此錯誤，但信息窗口上gmappanel

TypeError: b.O is not a function 
[Break On This Error] 

(82 out of range 43) 

Answer 1

正確顯示該代碼已經在這裏對Info Window讀數。