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(14) array_2_30[7]=new ListBoxItem("652900","新疆维吾尔自治区阿克苏地区","");
array_2_30[8]=new ListBoxItem("653000","新疆维吾尔自治区克孜勒苏柯尔克孜自治州","");
array_2_30[9]=new ListBoxItem("653100","新疆维吾尔自治区喀什地区","");
array_2_30[10]=new ListBoxItem("653200","新疆维吾尔自治区和田地区","");
array_2_30[11]=new ListBoxItem("654000","新疆维吾尔自治区伊犁哈萨克自治州","");
array_2_30[12]=new ListBoxItem("654200","新疆维吾尔自治区塔城地区","");
array_2_30[13]=new ListBoxItem("654300","新疆维吾尔自治区阿勒泰地区","");
array_2_30[14]=new ListBoxItem("659000","新疆维吾尔自治区省直辖行政单位","");
map.put(new Entry("650000",array_2_30));

var array_2_31=new Array();
map.put(new Entry("710000",array_2_31));

var array_2_32=new Array();
map.put(new Entry("810000",array_2_32));

var array_2_33=new Array();
map.put(new Entry("820000",array_2_33));

var array_3_0=new Array();
array_3_0[0]=new ListBoxItem("110101","北京市东城区","");
array_3_0[1]=new ListBoxItem("110102","北京市西城区","");
array_3_0[2]=new ListBoxItem("110103","北京市崇文区","");
array_3_0[3]=new ListBoxItem("110104","北京市宣武区","");
array_3_0[4]=new ListBoxItem("110105","北京市朝阳区","");
array_3_0[5]=new ListBoxItem("110106","北京市丰台区","");
array_3_0[6]=new ListBoxItem("110107","北京市石景山区","");
array_3_0[7]=new ListBoxItem("110108","北京市海淀区","");
array_3_0[8]=new ListBoxItem("110109","北京市门头沟区","");
array_3_0[9]=new ListBoxItem("110111","北京市房山区","");
array_3_0[10]=new ListBoxItem("110112","北京市通州区","");
array_3_0[11]=new ListBoxItem("110113","北京市顺义区","");
array_3_0[12]=new ListBoxItem("110114","北京市昌平区","");
array_3_0[13]=new ListBoxItem("110115","北京市大兴区","");
array_3_0[14]=new ListBoxItem("110116","北京市怀柔区","");
array_3_0[15]=new ListBoxItem("110117","北京市平谷区","");
map.put(new Entry("110100",array_3_0));

var array_3_1=new Array();
array_3_1[0]=new ListBoxItem("110228","北京市密云县","");
array_3_1[1]=new ListBoxItem("110229","北京市延庆县","");
map.put(new Entry("110200",array_3_1));

var array_3_2=new Array();