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<script language="javascript" type="text/javascript">
//³ÇÊÐ------------------------------
function cityResult() 

var city=document.getElementById("DropDownList1");
AjaxMethod.GetCityList(city.value,get_city_Result_CallBack);
}

function get_city_Result_CallBack(response)
{
if (response.value != null)
{
//debugger;
document.getElementById("<%=DropDownList2.ClientID%>").length=0;¡¡¡¡¡¡¡¡
¡¡¡¡¡¡¡¡ var ds = response.value;
if(ds != null && typeof(ds) == "object" && ds.Tables != null)
{
for(var i=0; i<ds.Tables[0].Rows.length; i++)
¡¡¡¡¡¡¡¡ {
¡¡¡¡¡¡¡¡ var name=ds.Tables[0].Rows[i].shiName;
¡¡¡¡¡¡¡¡¡¡¡¡ var id=ds.Tables[0].Rows[i].shiID;
¡¡¡¡¡¡¡¡¡¡¡¡ document.getElementById("<%=DropDownList2.ClientID%>").options.add(new Option(name,id));
¡¡¡¡¡¡¡¡ }


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JScript code:
function upnum(h_id){
var url = "InfoOnOff.asp?ID="+ h_id
var ajax = InitAjax();
ajax.open("GET", url, true);
ajax.onreadystatechange = function() {
if (ajax ......
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