var myLatlng2 = new google.maps.LatLng(45.9,-85.6);
var marker2 = new google.maps.Marker({
position: myLatlng2,
map: map
});
or
var marker2 = new google.maps.Marker({
position: new google.maps.LatLng(45.9,-85.6),
map: map
});
solved How Would I Add A Second Google Map Marker Using This Script?