function enviadata(form,pdia,pmes,pano)
{
   with (form)
   {
      dia.value = pdia;
      mes.value = pmes;
      ano.value = pano;
      submit();
   }
}

function changepage(page)
{
   document.frmcalendario.action = "index.htm?page="+page;
   document.frmcalendario.submit();
}