how to attach an event listener using jQuery map v3?

how to attach an event listener using jQuery map v3?

i am trying to load more markers when the map is dragged and i'm not sure
how to get the current bounds.
var map = $('#map');
map.gmap().bind('init', function(evt, map) {
$(map).dragend(function(){
console.log('a');
});
});
i need to somehow get the current bounds inside the dragend callback and
load more markers..
notice that i am using jQuery UI Map v3 and not Google Maps Api v3 witch
is a bit different in the way it calls different methods
anyone has any ideas, i can't find this in the wiki?
thanks