Java script isn't executing in my application

Question

Below is my Html Code:

 <asp:TextBox ID="txttehsil" runat="server" class="settings_textbox_body"></asp:TextBox>

And server side code is as follow:

 

[System.Web.Services.WebMethod] public static List<string> GetNames(string name)
 { List<string> nameList = new List<string>(); 
string strSqlQuery = "Select * from SubRegions where SubRegionName like '%" + name + "%'"; 
SqlDataAdapter da = new SqlDataAdapter(strSqlQuery, Common.GetConnectionString());
 DataSet ds = new DataSet(); da.Fill(ds, "SubRegions"); 
DataTable dt = ds.Tables["SubRegions"]; 
DataRowCollection drc = dt.Rows; 
foreach (DataRow dr in drc) {              
       nameList.Add(dr["SubRegionName"].ToString()); }
 return nameList; }


This code is run without a master page, but it is
 not run in my application. Please give me proper answer.
 In this page autocomplete textbox is use.It is jquery ajax application.
 I use this code in another project its execute properly and
 gave me proper result.