GMaps V3 InfoWindow - disable the close “x” button

Question

From what I see, in v2 of GMaps API there was a property \"buttons\" of the InfoWindow object that one could define in a way that given InfoWindow has no close button:

Answer 1

in jQuery's gmap3 plugin this can be accomplished using

google.maps.event.addListener($('#map').gmap3({get:{name:"infowindow"}}), 'domready', function(){
    $(".gm-style-iw").next("div").remove();
});