Javascript alert works on dev workstation and not on a test app server

In a vb.net 2010 web form application, I have the following code:

<%@ Page Title="" Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="default.aspx.vb" Inherits="attendanceletters_default" %><%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %><asp:Content ID="Content1" ContentPlaceHolderID="MPHead" Runat="Server"><script src="../scripts/jquery-1.3.2.js" type="text/javascript"></script><script src="../scripts/jquery-ui-1.7.2.custom.min.js" type="text/javascript"></script><%If (False) Then%><script src="../scripts/jquery-1.3.2.js" type="text/javascript"></script><% End If%><script src="../scripts/site.js" type="text/javascript"></script><script src="../scripts/json2.js" type="text/javascript"></script>
        function GetStudentLetterTemplate(schoolyear, schoolnum, milestone, studentlink, language, semester) {

            alert('schoolyear: ' + schoolyear + 'schoolnum: ' + schoolnum + 'milestone: ' + milestone + 'studentlink: ' + studentlink + 'language: ' + language + 'semester: ' + semester);
             if (milestone == '999') {
                 alert('You have selected student(s) having more than one CAIP entry for the current school year');
               return;
            }
}