How to find where my JavaScript code is failing

Hello,

I am trying to use the attached code to add a new item to an existing SharePoint list. The code produces a text box and a button on the page. The idea is to type in a title, click the button, and a new record is added to the Campaign list. When I click the button, however, I receveid an alert that simply states, "error". Not very helpful. I have been trying to use the F12 debugger, but so far have not been able to see where the error actually occurrs. It goes off into the jquery.js file and bounces around back and for for a long time before finally stoping and spitting out the usesless "error". But once the error comes, I still don't see what line of the code is actually causing the error.  The error is being provided by the processResult function.

I will be VERY greatful if you would help me figure this out. I hope I have explained this good enough. Let me know if not.

Thank you!
Riverwalk

<%@ Page Language="C#" masterpagefile="~masterurl/custom.master" title="Untitled 1" inherits="Microsoft.SharePoint.WebPartPages.WebPartPage, Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" meta:progid="SharePoint.WebPartPage.Document" %>
<asp:Content id="Content1" runat="server" contentplaceholderid="PlaceHolderAdditionalPageHead">

		
</asp:Content>
<asp:Content id="Content2" runat="server" contentplaceholderid="PlaceHolderMain">

<script type="text/javascript" src="http://xxxxxx.zzz.comxxxxx/xxxx/xxxxxx/javascript/jquery-1.3.2.min.js"></script>


<script type="text/javascript">


$(function DisplayItem()
{

var test;
test=GetListItem ($().SPServices.SPGetQueryString()["ID"],"Title","Campaign");
alert (test);

});


////////////////////////////////////////////////////////////////////////////////////////

function CreateNewItem(title) {
    var batch =
        "<Batch OnError=\"Continue\"> \
            <Method ID=\"1\" Cmd=\"New\"> \
                <Field Name=\"Name\">" + title + "</Field> \
            </Method> \
        </Batch>";

    var soapEnv =
        "<?xml version=\"1.0\" encoding=\"utf-8\"?> \
        <soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" \
            xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" \
            xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"> \
          <soap:Body> \
            <UpdateListItems xmlns=\"http://schemas.microsoft.com/sharepoint/soap/\"> \
              <listName>Campaign</listName> \
              <updates> \
                " + batch + "</updates> \
            </UpdateListItems> \
          </soap:Body> \
        </soap:Envelope>";

    $.ajax({
        url: "http://xxxxx.yyyy.com/_vti_bin/lists.asmx",
        beforeSend: function(xhr) {
            xhr.setRequestHeader("SOAPAction",
            "http://schemas.microsoft.com/sharepoint/soap/UpdateListItems");
        },
        type: "POST",
        dataType: "xml",
        data: soapEnv,
        complete: processResult,
        contentType: "text/xml; charset=utf-8"
    });
}

function processResult(xData, status) {
    alert(status);
}

$(document).ready(function() {
    $("#newTaskButton").click(function() {
        CreateNewItem($("#newTaskTitle").val());
    });
}); 

</script>



	<p>
        Task Title: 
        <input id="newTaskTitle" type="text" />
        <input id="newTaskButton" type="button" value="Create Task" />
    </p>

</asp:Content>

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