How to call C# methods which returns array of strings in Javascript In ASP.Net

Hi

i am trying to access C# method which returns array of strings in javascript

i refred http://www.aspsnippets.com/Articles/Calling-server-side-function-from-JavaScript-in-ASP.Net.aspx

i used below code in server Side

  [WebMethod]
        public static string[] getsvgData()
        {
           XDocument doc = XDocument.Load(HostingEnvironment.MapPath("~/svg0.svg"));
            XNamespace ns1 = "http://www.w3.org/2000/svg";
            

            var getitems = doc.Descendants(ns1 + "image").FirstOrDefault();

            string values = getitems .ToString();
            char[] whitespace = new char[] { ' ', '\t' };
            string[] collectionval = values.Split(whitespace);
return collectionval ;
        }

  <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true">
            </asp:ScriptManager>
 <script type='text/javascript'>

           function GetName() {



           var Listofitems=PageMethods.getsvgData();

           }

but my problem is i am not getting array elements in Javascript .

when i tried with return type as string it works fine.

can any one suggest where i went wrong. ?