// (c) copyright 2005 modernmethod, inc
    var sajax_debug_mode = false;
    var sajax_request_type = "POST";
    var sajax_target_id = "";
    var sajax_failure_redirect = "";
    
    function sajax_debug(text) {
        if (sajax_debug_mode)
            alert(text);
    }
    
    function sajax_init_object() {
        sajax_debug("sajax_init_object() called..")
        
        var A;
        
        var msxmlhttp = new Array(
            'Msxml2.XMLHTTP.5.0',
            'Msxml2.XMLHTTP.4.0',
            'Msxml2.XMLHTTP.3.0',
            'Msxml2.XMLHTTP',
            'Microsoft.XMLHTTP');
        for (var i = 0; i < msxmlhttp.length; i++) {
            try {
                A = new ActiveXObject(msxmlhttp[i]);
            } catch (e) {
                A = null;
            }
        }
            
        if(!A && typeof XMLHttpRequest != "undefined")
            A = new XMLHttpRequest();
        if (!A)
            sajax_debug("Could not create connection object.");
        return A;
    }
    
    var sajax_requests = new Array();
    
    function sajax_cancel() {
        for (var i = 0; i < sajax_requests.length; i++) 
            sajax_requests[i].abort();
    }
    
    function sajax_do_call(func_name, args) {
        var i, x, n;
        var uri;
        var post_data;
        var target_id;
        
        sajax_debug("in sajax_do_call().." + sajax_request_type + "/" + sajax_target_id);
        target_id = sajax_target_id;
        if (typeof(sajax_request_type) == "undefined" || sajax_request_type == "") 
            sajax_request_type = "GET";
        
        uri = "/comments.php";
        if (sajax_request_type == "GET") {
        
            if (uri.indexOf("?") == -1) 
                uri += "?rs=" + escape(func_name);
            else
                uri += "&rs=" + escape(func_name);
            uri += "&rst=" + escape(sajax_target_id);
            uri += "&rsrnd=" + new Date().getTime();
            
            for (i = 0; i < args.length-1; i++) 
                uri += "&rsargs[]=" + escape(args[i]);

            post_data = null;
        } 
        else if (sajax_request_type == "POST") {
            post_data = "rs=" + escape(func_name);
            post_data += "&rst=" + escape(sajax_target_id);
            post_data += "&rsrnd=" + new Date().getTime();
            
            for (i = 0; i < args.length-1; i++) 
                post_data = post_data + "&rsargs[]=" + escape(args[i]);
        }
        else {
            alert("Illegal request type: " + sajax_request_type);
        }
        
        x = sajax_init_object();
        if (x == null) {
            if (sajax_failure_redirect != "") {
                location.href = sajax_failure_redirect;
                return false;
            } else {
                sajax_debug("NULL sajax object for user agent:\n" + navigator.userAgent);
                return false;
            }
        } else {
            x.open(sajax_request_type, uri, true);
            // window.open(uri);
            
            sajax_requests[sajax_requests.length] = x;
            
            if (sajax_request_type == "POST") {
                x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
                x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
            }
        
            x.onreadystatechange = function() {
                if (x.readyState != 4) 
                    return;

                sajax_debug("received " + x.responseText);
            
                var status;
                var data;
                var txt = x.responseText.replace(/^\s*|\s*$/g,"");
                status = txt.charAt(0);
                data = txt.substring(2);

                if (status == "") {
                    // let's just assume this is a pre-response bailout and let it slide for now
                } else if (status == "-") 
                    alert("Error: " + data);
                else {
                    if (target_id != "") 
                        document.getElementById(target_id).innerHTML = eval(data);
                    else {
                        try {
                            var callback;
                            var extra_data = false;
                            if (typeof args[args.length-1] == "object") {
                                callback = args[args.length-1].callback;
                                extra_data = args[args.length-1].extra_data;
                            } else {
                                callback = args[args.length-1];
                            }
                            callback(eval(data), extra_data);
                        } catch (e) {
                            sajax_debug("Caught error " + e + ": Could not eval " + data );
                        }
                    }
                }
            }
        }
        
        sajax_debug(func_name + " uri = " + uri + "/post = " + post_data);
        x.send(post_data);
        sajax_debug(func_name + " waiting..");
        delete x;
        return true;
    }
    
    // wrapper for addComment        
    function x_addComment() {
        sajax_do_call("addComment",
            x_addComment.arguments);
    }
    
            
    // wrapper for getComments        
    function x_getComments() {
        sajax_do_call("getComments",
            x_getComments.arguments);
    }
    
    // Taragana Copyright 2006    
    // Refresh comments on page
    function refreshComments() {
        x_getComments(document.location.href, updatePageCB);
    }
    
    // Callback for getComments
    function updatePageCB(data) {
        document.getElementById('comments').innerHTML = data;
    }
        
    function addCommentCB(d) {    
        refreshComments();
        window.status = d;        
    }
    function handleFormSubmit() {
        var author = document.getElementById('author');        
        var location = document.getElementById('location');        
        var message = document.getElementById('comment');
        
        x_addComment(author.value, location.value, message.value, document.location.href, addCommentCB);
        return false;
    }
    window.onload = refreshComments;