function setOptions(chosen) {
var selbox = document.myform.opttwo;
 
selbox.options.length = 0;
if (chosen == " ") {
  selbox.options[selbox.options.length] = new Option('',' ');
 
}
if (chosen == "INDIA") {
  selbox.options[selbox.options.length] = new Option('All','All');
  selbox.options[selbox.options.length] = new Option('Agra','Agra');
  selbox.options[selbox.options.length] = new Option('Ahmedabad','Ahmedabad');
  selbox.options[selbox.options.length] = new Option('Bangalore','Bangalore');
  selbox.options[selbox.options.length] = new Option('Bhopal','Bhopal');
  selbox.options[selbox.options.length] = new Option('Bhubaneswar','Bhubaneswar');
  selbox.options[selbox.options.length] = new Option('Chandigarh','Chandigarh');
  selbox.options[selbox.options.length] = new Option('Chennai','Chennai');
  selbox.options[selbox.options.length] = new Option('Coimbatore','Coimbatore');
  selbox.options[selbox.options.length] = new Option('Dehradun','Dehradun');
  selbox.options[selbox.options.length] = new Option('Delhi','Delhi');
  selbox.options[selbox.options.length] = new Option('Ernakulam','Ernakulam');
  selbox.options[selbox.options.length] = new Option('Faridabad','Faridabad');
  selbox.options[selbox.options.length] = new Option('Ghaziabad','Ghaziabad');
  selbox.options[selbox.options.length] = new Option('Gurgaon','Gurgaon');
  selbox.options[selbox.options.length] = new Option('Guwahati','Guwahati');
  selbox.options[selbox.options.length] = new Option('Hyderabad','Hyderabad');
  selbox.options[selbox.options.length] = new Option('Indore','Indore');
  selbox.options[selbox.options.length] = new Option('Jaipur','Jaipur');
  selbox.options[selbox.options.length] = new Option('Jalandhar','Jalandhar');
  selbox.options[selbox.options.length] = new Option('Khammam','Khammam');
  selbox.options[selbox.options.length] = new Option('Kochi','Kochi');
  selbox.options[selbox.options.length] = new Option('Kolkata','Kolkata');
  selbox.options[selbox.options.length] = new Option('Lucknow','Lucknow');
  selbox.options[selbox.options.length] = new Option('Ludhiana','Ludhiana');
  selbox.options[selbox.options.length] = new Option('Mumbai','Mumbai');
  selbox.options[selbox.options.length] = new Option('Nagpur','Nagpur');
  selbox.options[selbox.options.length] = new Option('Noida','Noida');
  selbox.options[selbox.options.length] = new Option('Pune','Pune');
  selbox.options[selbox.options.length] = new Option('Surat','Surat');
  selbox.options[selbox.options.length] = new Option('Vadodara','Vadodara');
  selbox.options[selbox.options.length] = new Option('Vizag','Vizag');
  selbox.options[selbox.options.length] = new Option('Warangal','Warangal');
}
if (chosen == "USA") {
  selbox.options[selbox.options.length] = new Option('Washington','Washington');
}
if (chosen == "UK") {
  selbox.options[selbox.options.length] = new Option('London','London');
}



}