var areajs = Array();
areajs['selected'] = '';
areajs['494'] = Array();
areajs['494']['497'] = "开发区"; 
areajs['494']['507'] = "黄岛区"; 
areajs['494']['506'] = "崂山区"; 
areajs['494']['505'] = "胶南市"; 
areajs['494']['504'] = "胶州市"; 
areajs['494']['503'] = "城阳区"; 
areajs['494']['502'] = "即墨市"; 
areajs['494']['501'] = "莱西市"; 
areajs['494']['500'] = "平度市"; 
areajs['494']['499'] = "四方区"; 
areajs['494']['498'] = "李沧区"; 
areajs['494']['496'] = "市南区"; 
areajs['494']['495'] = "市北区"; 
areajs['492'] = Array();
areajs['492']['493'] = "其他"; 
function ChangeSubSelect_areajs(tt,st){
figure = tt.value;
j = 0;
for(var key in areajs[figure]){
j++;
}
i = 0;
se_pd = 0
st.options.length = j+1;
i++;
for(var key in areajs[figure]){
st.options[i].text = areajs[figure][key];
st.options[i].value = key;
if(areajs["selected"] != key && se_pd == 0) {
st.options[0].selected = true;
} else if (areajs["selected"] == key) {
st.options[i].selected = true;
se_pd = 1;
}
i++;
}
}