// remote scripting library
// (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..")

        //alert("start");
        //showFrmWait();

        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 = "";			
        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[]=" + 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);
                    //alert("stop");
                    //hideFrmWait()

                        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 AJAXSynchronizeDB		
function x_AJAXSynchronizeDB() {
        sajax_do_call("AJAXSynchronizeDB",
                x_AJAXSynchronizeDB.arguments);
}