var DamansaraAvenue = new Array("Please select one","Lifestyle Retail (for lease)", "Office Suites (for sale)", "High-rise Residential");
var UThant = new Array("Please select one", "Stratified Landed", "Condominium");
var BukitBintang = new Array("Please select one", "Serviced Apartment", "Commercial");
var KLCC = new Array("Please select one", "Serviced Apartment", "Commercial");
var Dutamas = new Array("Please select one", "Condominium");

function set_sub_project() {
  var select_project = document.form1.project;
  var select_sub_project = document.form1.sub_project;
  var selected_project = select_project.options[select_project.selectedIndex].value;

  select_sub_project.options.length=0;
  if (selected_project == "DamansaraAvenue"){
    for(var i=0; i<DamansaraAvenue.length; i++)
    select_sub_project.options[select_sub_project.options.length] = new Option(DamansaraAvenue[i]);
  }
  if (selected_project == "UThant"){
    for(var i=0; i<UThant.length; i++)
    select_sub_project.options[select_sub_project.options.length] = new Option(UThant[i]);
 
  }
  if (selected_project == "BukitBintang"){
    for(var i=0; i<BukitBintang.length; i++)
    select_sub_project.options[select_sub_project.options.length] = new Option(BukitBintang[i]);
  }
  if (selected_project == "KLCC"){
    for(var i=0; i<KLCC.length; i++)
    select_sub_project.options[select_sub_project.options.length] = new Option(KLCC[i]);
 }
 if (selected_project == "Dutamas"){
    for(var i=0; i<Dutamas.length; i++)
    select_sub_project.options[select_sub_project.options.length] = new Option(Dutamas[i]);
 }
}