Cant add a marker in this code anyhow : I have tried to use traditional marker function with this code but the marker is not visible. How can i add marker attached to this info window.please please please help
    
    function initMap()
    {
    map = new google.maps.Map(document.getElementById('map'),
    { 
       center: {lat: 22.5726, lng: 88.3639}, 
       zoom: 13 
    }); 
         
         infoWindow = new google.maps.InfoWindow; 
         if (navigator.geolocation) { 
           navigator.geolocation.getCurrentPosition(function(position) { 
             var pos = { 
               lat: position.coords.latitude, 
               lng: position.coords.longitude 
             }; 
             infoWindow.setPosition(pos); 
             infoWindow.setContent("You're here Bro!"); 
			
             infoWindow.open(map); 
             map.setCenter(pos); 
           }, function() { 
             handleLocationError(true, infoWindow, map.getCenter()); 
           }); 
         } else { 
           // Browser doesn't support Geolocation 
           handleLocationError(false, infoWindow, map.getCenter()); 
         } 
		 
		  new AutocompleteDirectionsHandler(map);
       }
	   
	   function handleLocationError(browserHasGeolocation, infoWindow, pos) { 
         infoWindow.setPosition(pos); 
         infoWindow.setContent(browserHasGeolocation ? 
                               'Error: The Geolocation service failed.' : 
                               'Error: Your browser doesn\'t support geolocation.'); 
         infoWindow.open(map); 
}