一个相对不错的地区代码级联实现

一个相对不错的地区代码级联实现(10) array_2_18[20]=new ListBoxItem("442200","广东省云浮市","");
map.put(new Entry("440000",array_2_18));

var array_2_19=new Array();
array_2_19[0]=new ListBoxItem("450100","广西壮族自治区南宁市","");
array_2_19[1]=new ListBoxItem("450200","广西壮族自治区柳州市","");
array_2_19[2]=new ListBoxItem("450300","广西壮族自治区桂林市","");
array_2_19[3]=new ListBoxItem("450400","广西壮族自治区梧州市","");
array_2_19[4]=new ListBoxItem("450500","广西壮族自治区北海市","");
array_2_19[5]=new ListBoxItem("450600","广西壮族自治区防城港市","");
array_2_19[6]=new ListBoxItem("450700","广西壮族自治区钦州市","");
array_2_19[7]=new ListBoxItem("450800","广西壮族自治区贵港市","");
array_2_19[8]=new ListBoxItem("450900","广西壮族自治区玉林市","");
array_2_19[9]=new ListBoxItem("451000","广西壮族自治区百色市","");
array_2_19[10]=new ListBoxItem("451100","广西壮族自治区贺州市","");
array_2_19[11]=new ListBoxItem("451200","广西壮族自治区河池市","");
array_2_19[12]=new ListBoxItem("451300","广西壮族自治区来宾市","");
array_2_19[13]=new ListBoxItem("451400","广西壮族自治区崇左市","");
map.put(new Entry("450000",array_2_19));

var array_2_20=new Array();
array_2_20[0]=new ListBoxItem("460100","海南省海口市","");
array_2_20[1]=new ListBoxItem("460200","海南省三亚市","");
array_2_20[2]=new ListBoxItem("469000","海南省省直辖县级行政单位","");
map.put(new Entry("460000",array_2_20));

var array_2_21=new Array();
array_2_21[0]=new ListBoxItem("500100","重庆市市辖区","");
array_2_21[1]=new ListBoxItem("500200","重庆市辖县","");
array_2_21[2]=new ListBoxItem("500300","重庆市市","");
map.put(new Entry("500000",array_2_21));

var array_2_22=new Array();
array_2_22[0]=new ListBoxItem("510100","四川省成都市","");
array_2_22[1]=new ListBoxItem("510300","四川省自贡市","");
array_2_22[2]=new ListBoxItem("510400","四川省攀枝花市","");
array_2_22[3]=new ListBoxItem("510500","四川省泸州市","");
array_2_22[4]=new ListBoxItem("510600","四川省德阳市","");
array_2_22[5]=new ListBoxItem("510700","四川省绵阳市","");
array_2_22[6]=new ListBoxItem("510800","四川省广元市","");
array_2_22[7]=new ListBoxItem("510900","四川省遂宁市","");
array_2_22[8]=new ListBoxItem("511000","四川省内江市","");