New Post: Trying to use SPAddMultipleListItems

function postFunction() { //main function
    alert("it worked");
    $.fn.SPServices.SPAddMultipleListItems = function(options) { //add multiple list items function

    var opt = $.extend({}, {
        webURL: "",         // [Optional] URL of the target Web.  If not specified, the current Web is used.
        listName: "{8EC40D21-B767-462C-BD20-5E27AFD583C8}",       // The list to operate on.
        batchCmd: "New",    // The operation to perform. By default, New.
        valuepairs: [["CustomerID","1"]],     // Valuepairs for the update in the form [[fieldname1, fieldvalue1], [fieldname2, fieldvalue2]...]
        completefunc: null, // Function to call on completion of rendering the change.
        debug: false        // If true, show error messages;if false, run silent
    }, options);

    var i;
    var fieldNum;
    var batch = "<Batch OnError='Continue'>";
    for (i = 0; i < opt.valuepairs.length; ++;) {
        batch += "<Method ID='" + i + "' Cmd='" + opt.batchCmd + "'>";
        batch += "<Field Name='" + opt.valuepairs[i][0] + "'>" + opt.valuepairs[i][1] + "</Field>";
        batch += "</Method>";
    }
    batch += "</Batch>";
       
$().SPServices({ //update list items
        operation: "UpdateListItems",
        async: false,
        webURL: opt.webURL,
        listName: opt.listName,
        updates: batch,
        completefunc: function(xData, Status) {
            // If present, call completefunc when all else is done
            if (opt.completefunc !== null) {
                opt.completefunc();
            }
        }
    }); //update list items

}; //add multiple list items function
} //main function
</script>