function setOptions(chosen) {
var selbox = document.myform.opttwo;
selbox.options.length = 0;
if (chosen == " ") {
  selbox.options[selbox.options.length] = new Option('Please select one of the options above first',' ');
 
}
if (chosen == "1") {
  selbox.options[selbox.options.length] = new Option('Coach House Room','index.php?page=coach-house-room');
  selbox.options[selbox.options.length] = new Option('Marsland Room','index.php?page=marsland-room');
}
if (chosen == "2") {
  selbox.options[selbox.options.length] = new Option('Carrington Suite','index.php?page=carrington-suite');
  selbox.options[selbox.options.length] = new Option('Terrace Suite','index.php?page=terrace-suite');
}
}