function setdays(inForm) {
  var t3=0;

  if(inForm.month.options[1].selected)
    t3=28;
   else	if(inForm.month.options[3].selected || inForm.month.options[5].selected || inForm.month.options[8].selected || inForm.month.options[10].selected)
    t3=30;
  else
    t3=31;

  for(i=0; i < inForm.day.length; i++){
    inForm.day.options[i]=null;
  }

  for (var i=0; i <t3 ; i++) {
	var x= String(i+1);
	inForm.day.options[i] = new Option(x);
  }
}