var MENU = [];
MENU[0] = [];
MENU[1] = [];
MENU[2] = [];
MENU[3] = [];
MENU[4] = [];

MENU[0][0] = new Option("Select your state");

MENU[1][0] = new Option("PA");
MENU[1][1] = new Option("Adams");
MENU[1][2] = new Option("Berks");
MENU[1][3] = new Option("Bucks");
MENU[1][4] = new Option("Carbon");
MENU[1][5] = new Option("Chester");
MENU[1][6] = new Option("Cumberland");
MENU[1][7] = new Option("Dauphin");
MENU[1][8] = new Option("Delaware");
MENU[1][9] = new Option("Lancaster");
MENU[1][10] = new Option("Lebanon");
MENU[1][11] = new Option("Lehigh");
MENU[1][12] = new Option("Monroe");
MENU[1][13] = new Option("Montgomery");
MENU[1][14] = new Option("Northampton");
MENU[1][15] = new Option("Philadelphia");
MENU[1][16] = new Option("Schuylkill");
MENU[1][17] = new Option("York");


MENU[2][0] = new Option("NJ");
MENU[2][1] = new Option("Atlantic");
MENU[2][2] = new Option("Burlington");
MENU[2][3] = new Option("Camden");
MENU[2][4] = new Option("Cumberland");
MENU[2][5] = new Option("Gloucester");
MENU[2][6] = new Option("Hunterdon");
MENU[2][7] = new Option("Mercer");
MENU[2][8] = new Option("Middlesex");
MENU[2][9] = new Option("Monmouth");
MENU[2][10] = new Option("Ocean");
MENU[2][11] = new Option("Salem");
MENU[2][12] = new Option("Somerset");


MENU[3][0] = new Option("DE");
MENU[3][1] = new Option("Kent");
MENU[3][2] = new Option("New Castle");
MENU[3][3] = new Option("Sussex");

MENU[4][0] = new Option("MD");
MENU[4][1] = new Option("Baltimore");
MENU[4][2] = new Option("Caroline");
MENU[4][3] = new Option("Carroll");
MENU[4][4] = new Option("Cecil");
MENU[4][5] = new Option("Harford");
MENU[4][6] = new Option("Kent");
MENU[4][7] = new Option("Queen Anne");
MENU[4][8] = new Option("Talbot");
MENU[4][9] = new Option("Wicomico");

function populateMain(mainSel, subSel){
 var mainMenu = mainSel;
 var subMenu = subSel;
 mainMenu.options.length = 0;
 for (var i = 0; i < MENU.length; i++) {
  mainMenu.options[i] = MENU[i][0];
 }
 populateSub(mainMenu, subMenu);
}

function populateSub(mainSel, subSel){
 var mainMenu = mainSel;
 var subMenu = subSel;
 var optMainMenu;
 subMenu.options.length = 1;
 optMainMenu = mainMenu.selectedIndex;
 for (var i = 1; i < MENU[optMainMenu].length; i++) {
  subMenu.options[i] = MENU[optMainMenu][i];
 }
}