document.observe("dom:loaded", function() {
  if($('bIsMale') != undefined) {
    switchMale($('bIsMale'));
    $$('#bIsMale').each(function(e) {Event.observe(e, "change", switchMale.bind(this, e));});
  }
});

function switchMale(o) {
  oTitle = o.up().up().down('#iTitleId');
  if(oTitle != undefined) {
    console.log(o.value);
    oTitle.options[(o.value>0 ? 1 : 2)].selected = true;
  }
}