function abrir(URL) {

   var width = 380;
   var height = 300;

   var left = 200;
   var top = 200;

   window.open(URL,'googlemap', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=no, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');

}