marker event does not work on phonegap

I found an issue on my phonegap app when i tried to execute something from marker's event mousedown. Same code works on web application.

Application init map, center, draw all markers, but it does not execute my code on mousedown event.

var marker1= new OpenLayers.Marker(position, icon_nodisp.clone()); marker1.events.register('mousedown', marker1, function() { alert('hola marker'); }); taxisLayer.addMarker(marker1);

please help me!!!