// GLOBALS
var mybic_failed_requests = 0;			// a placeholder to count the number of failed requests to the server

Function.prototype.mybicBind = function(object) {  
  var __method = this;
  return function() {
    return __method.apply(object, arguments);
  }
};

 /**
* Constructor for MyBIC's ajax object
* This only needs to be instantiated once in your script and you'll be able to re-use the same object for all your requests
*@constructor
*@author Jim Plush jiminoc@gmail.com
*@param {string} server_url The URL of the page you're going to connect to on the server, by default mybic_server.php
*@param {string} readyStateFunction (OPTIONAL)The function that will be called when ajax responses come back from the server, by default mybic handles this for you
*/
function XMLHTTP(server_url, readyStateFunction)
{
    /** 
    * the SERVER page URL to connect to IE ajax_server.php 
    *@type String
    */
    this.server_url = server_url;
     
    /**
    *  whether we're in syncronous mode or async (default), syncronous means the UI will lock up until the response is received - you rarely would want this.
    *@type String
    */    
    this.async = true;    
    
    /** 
    * debug turned off by default, to see your request/response do ajaxObj.debug=1, useful for seeing what's going on with your ajax requests
    *@type int
    */            
    this.debug=0;
                    
    /**
    * this enables throttling by default so all your requests are in the proper order
    *@type int
    */        
    this.throttle=1;                
    
    /**
    * by default all requests are sent via POST to override just use ajaxObj.method="GET"; before your call
    *@type String
    */
    this.method = "POST";
    
    /**
    * by default JSON encoding is the expected format, to override: ajaxObj.format = "XML"; or ajaxObj.format="TEXT";
    * if you're planning to just load HTML snippets for innerHTML use, just set this to TEXT
    *@type String
    */
    this.format = "JSON";                
                    
    /**
    * array of optional headers you may pass in
    *@type Array
    */
    this.headers = new Array();            
    
    /**
    * the number of seconds to wait before calling network down function, set to -1  disable feature, defaults to 5 seconds
    *@type int
    */
    this.abort_timeout = 5000;    
            
    /** 
    * the number of failed requests before mybic is disabled -> prevents repeated error notifications, no more ajax requests will fire after this amount of failures
    *@type int
    */
    this.failed_threshold = 3;        
    
    /**
    *  set this to 1 if you have a polling object and you don't want to see debug msgs every second or activity indicators, nice to keep out of firebug
    *@type
    */    
    this.ignoreCall = 0;
                    
    /**
    * set this to one in your client code if you want to make sure your callback functions completes before making another ajax call in the queue
    *@type int
    */
    this.stopRequest = 0;                

    /** 
    * ERROR HANDLERS YOU CAN SET, TO OVERRIDE OR COMPLIMENT EXISTING FUNCTIONALITY
    */
    
    /**
    * Set this to a function in your website that will handle pop up errors in your call back function more gracefully DO FOR LIVE SITES!
    * this is used when your callback function experiences a fatal error, mybic can execute a nicer function for you and pass you the error object
    * note: do not assign with parens, do this ajaxObj.jsErrorHandler = myFunction;
    *@type function
    */
    this.jsErrorHandler = '';       
       
    /**
    * set this to a function in your website that will handle pop up errors in your call back function more gracefully
    */
    this.notAuthorizedHandler = '';    
    
    /**
    * the function that will be called if mybic cannot make a request to the server (server down)
    * if 'disabled' is passed to your function, then no more ajax calls can be made, you might want to reload the whole page at this point
    */ 
    this.net_down_func = this.down;        
    
    
    /*-- SYSTEM PROPERTIES - no need to change the properites below --*/
    /**
    *@private
    */
    this.version = '1.0.1';
    
    /**
    * the xmlhttprequest variable, starts off as null
    *@private
    */
    this.req = null;    
                
    /**
    * used for showing expandable visual debug data
    *@private
    */
    this.debugID = 0;
                    
    /**
    * array of errors generated
    *@private
    */
    this.errors = new Array();
    
    /**
    * the queue that will handle the throttling requests to keep your stuff in sync
    *@private
    */    
    this.queue = new Array();    
    
    /**
    * the current index for the throttling array
    *@private
    */            
    this.queue_in_process = 0;
    
    /**
    * system uses this to see what calls to ignore from the queue
    *@private
    */                
    this.currentCallIgnore=0;
    
    /**
    * the timer used to check the readystate of the xmlhttprequest to prevent memory leaks
    *@private
    */                
    this.readySateTimer = '';
    
    /**
    * the callback function, when the ajax request is sent, this is the function that will be called
    *@private
    */                
    this.callBack = '';    
    
    /**
    * cache which version of msxml to use on IE to avoid using the loop every time
    *@private
    */    
    this.IEObjCache = 0;
    
    /**
    * number of failed requests in a row
    *@private
    */                    
    this.failed_requests=0    
    
    /**
    * holds the callback function for ajax calls
    *@private
    */        
    this.readyStateFunction = (readyStateFunction) ? readyStateFunction : this.responseHandler;
    
    /**
    * holds the current queue of msgs to try to match up request/responses
    *@private
    */    
    this._msgQueueInfo = new Array();    
    
    /**
    * the timer used to check the readystate of the xmlhttprequest to prevent memory leaks
    *@private
    */    
    this.readyStateTimer   = '';   
    
    /**
    * the time interval used to check the readystate of the xmlhttprequest to prevent memory leaks
    *@private
    */    
    this.poolTimerInterval = 50;    
    
}

/**
* Method to create an XMLHTTP object
*@access private
*/
XMLHTTP.prototype = {
    getXMLHTTP:function() {
    
        // moz-IE7 XMLHTTPRequest object
        if (window.XMLHttpRequest) { this.req = new XMLHttpRequest(); }
        else if (this.IEObjCache != 0) { alert(this.IEObjCache);try {this.req = new ActiveXObject(this.IEObjCache);}catch(e){} }
        else if (window.ActiveXObject){
            // 6.0 is recommended for all vista + users, 3.0 is recommended over all 4 & 5 versions
            var progIDs = [ 'MSXML2.XMLHTTP.6.0','MSXML2.XMLHTTP.3.0','Microsoft.XMLHTTP'];
            for (var i = 0; i < progIDs.length; i++) {
                try {
                    this.req = new ActiveXObject(progIDs[i]);
                      this.IEObjCache = progIDs[i];
                    break;
                }
                catch (ex) {}
            }
       } else {
            if(this.debug == 1) { this.showDebug("<BR>FATAL ERROR: Could not create XMLHTTPRequest Object!<BR>");    }
       }
        return this.req;
    },
    /**
    * Main API method to use for AJAX requests
    * example: ajaxObj.call("action=loadComments&id=1", myCallBackFunction);
    *@access public
    *@param string A url encoded string of data to send to the server
    *@param string A callback function that the server will launch when the response is generated
    *@param string Used by the response handler function to send back throttled requests, you won't need to worry about this param
    */
    call:function(queryVars, userCallback, queue_request) {
    
        // test for too many failed requests
        if(this.failed_requests >= this.failed_threshold) {
            // call network down method with instruction to notify of mybic being disabled
            this.net_down_func('disable');
            return false;
        } else {
            var currentVars;
            var callback;
            this.fullUrl = '';
    
            if(this.throttle == 1 && queue_request != 'queue' || this.stopRequest == 1) {        // throttling keeps your requests in sync, so things aren't out of order
                this.add2Queue(queryVars, userCallback);    
            }
        
            if(this.queue_in_process == 0) {
                if(!this.getXMLHTTP()) {
                    return false;
                }
            
                if(this.throttle == 1) {
                    this.queue_in_process = 1;
                    var currentCall = this.queue.shift();    // get the current call to make
                    currentVars = currentCall.queryVars;
                    callback = currentCall.userCallback;
                    this.format = currentCall.format;
                    this.method = currentCall.method;
                    this.abort_timeout = currentCall.abortTimeout;
                    this.currentCallIgnore = currentCall.ignoreCall;
                    this.async = currentCall.async;
                } else {
                    currentVars = queryVars;
                    callback = userCallback;
                    var ignoreCall=0;
                
                }
                this.callBack = callback;
        
                // check for JSON encoding
                if(this.format != 'JSON') {
                    currentVars = currentVars+'&json=false';
                }
                
                // if get is used, append the query variables to the url string 
                this.full_url = (this.method == "POST") ? this.server_url : this.server_url + '?'+ currentVars;
            
                if(this.debug == 1 && this.currentCallIgnore != 1) {
                    try {
                    var matches = currentVars.match(/action=(\w+)&?/);
                    this.showDebug('new', 'MYBIC - CALLING: '+matches[1]);
                    this.showDebug("Server Page: "+this.server_url+"<BR>HTTP Method: "+this.method+"<BR>Encoding Format: "+this.format+"<BR>Query String: "+currentVars+"<BR>");
                    }catch(e){}
                }
            
                // open connection
                this.req.open(this.method, this.full_url, this.async);
            
                // set any optional headers
                if(this.headers){
                    for(var i in this.headers) {
                        if(i != '' && (this.headers[i] instanceof String)) {
                            try {
                                this.req.setRequestHeader( i, this.headers[i]);
                                if(this.debug == 1) { this.showDebug('Setting Custom Header: '+this.headers[i]+'<br>');}
                            } catch(e) {}
                        }
                    }
                }
                // START TIMER TO ABORT REQUEST
                if(this.abort_timeout != -1) {
                    this.end_timer = setInterval(this.endCall.mybicBind(this), this.abort_timeout);
                }
                // send request
                if(this.method == 'POST') {
                    this.req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
                    this.request = currentVars;
                    this.req.send(currentVars);
                } else {
                    this.req.send(null);
                }
            
                // START POLLING FOR READYSTATECHANGE
                if (this.readyStateFunction) {
                        this.readyStateTimer = window.setInterval(
                        this.readyPoolFunc.mybicBind(this),
                        this.poolTimerInterval      // poll every 50 milliseconds for ready state
                    );
                 }
            
            }
        }
    
    },
    
    /**
    *
    *@private
    */    
    readyPoolFunc:function() {
        if(this.req && this.req.readyState == 4) {
            window.clearInterval(this.readyStateTimer);
            this.readyStateTimer = null;
            // call the current response handlet - responseHandler by default 
            this.readyStateFunction();
        }
    },

/**
* Default method for parsing the response from the server. It will try to eval the obj.method_to_call property and pass the native JS object
*private
*/
    responseHandler:function() {
        if(this.req) {
            try {
            // only if req shows "complete"
            if (this.req.readyState == 4) {
                // only if "OK"    
                if (this.req.status && this.req.status == 200) {
                    if(this.req.responseText.indexOf('ajax_msg_failed') != -1) {
                        this.showDebug("Fatal Error: mybic_server sent back ajax_msg_failed! - MSG: "+this.req.responseText+"<br/>");
                        if(this.req.responseText.indexOf('notauth') != -1) { 
                            if(this.abort_timeout != -1) { clearInterval(this.end_timer); }
                            if(this.notAuthorizedHandler == '') {
                                this.callBack('notauthorized'); 
                            } else {
                                try {
                                    this.notAuthorizedHandler();
                                }catch(e) {
                                
                                }
                            }
                        
                        } else {
                            this.callBack(false); 
                        }
                    } else {
                        // clear out network down timer
                        if(this.abort_timeout != -1) {
                            clearInterval(this.end_timer);
                        }
                        if(this.throttle == 1) {
                            var req = this._msgQueueInfo.shift();
                            var format = req.format;
                        } else {
                            var format = this.format;    
                        }
                    
                        if(format == "JSON") {
                        try {
                            var myObject = JSON.parse(this.req.responseText);
                        // callback function we passed to the server to process the results
                    
                        if(document.getElementById(this.callBack)) {
                            document.getElementById(this.callBack).innerHTML = myObject;
                        } else {
                            this.callBack(myObject);
                        }
                    
                        } catch(e) {
                        
                                if(this.jsErrorHandler == '') {
                                    alert('An error occurred in your response function, NOT mybic related. Error Name: ' + e.name + '  Message:' + e.message);
                                } else {
                                    // try to call the users javascript error handling function, have to show a popup if that sucker has en error in it too
                                    try { this.jsErrorHandler(e); } catch(err) { alert('Error: your errorhandling function has an error - name: '+err.name + ' message: '+err.message)}
                                }
                                
                        }
                        } else if(this.format == "XML") {
                            // send the raw xml data to the callback function
                            this.callBack(this.req.responseXML);    
                        } else {
                            try {
                                if(document.getElementById(this.callBack)) {
                                document.getElementById(this.callBack).innerHTML = this.req.responseText;
                                } else {
                                    this.callBack(this.req.responseText);
                                }
                            } catch(e) {
                                if(this.jsErrorHandler == '') {
                                    alert('An error occurred in your response function, NOT mybic related. Error Name: ' + e.name + '  Message:' + e.message);
                                } else {
                                    // try to call the users javascript error handling function, have to show a popup if that sucker has en error in it too
                                    try { this.jsErrorHandler(e); } catch(err) { alert('Error: your errorhandling function has an error - name: '+err.name + ' message: '+err.message)}
                                }
                            }

                        }
                
                    }
                
                    this.failed_requests = 0; // reset failed requests back to 0
                } else {
                    // server is came back with a bad status
                    try{
                    this.showDebug("Fatal Error: MSG: "+this.req.responseText+" StatusText: "+this.req.statusText+"<br/>");
                    } catch(e){}
                    this.endCall();    
                }
                try {
                    if(this.debug == 1 && this.currentCallIgnore != 1) {
                            // STRIP HTML
                            var str = this.req.responseText.replace(/(\<)/gi, '&lt;');
                            var str = str.replace(/(\>)/gi, '&gt;');
                            this.showDebug("HTTP Server Response:<br/> "+str+"<br>");
                        }
                } catch(e) { }
                
                // reset the method, format, etc back to class defaults
                this.restoreDefaults();
            
                // reset our queue and call
                this.queue_in_process = 0;
                this.req = null;
                if(this.queue.length > 0) {
                
                    this.call('','','queue');
                }
            }
            } catch(e) { 
            /*network is down*/}
        }
    
    },


    /**
    * This method will allow you to lazy load javascript source files for on-demand javascript processing
    * Just pass in the url of the javascript file you wish to pull in and you're all set, its not ajaxified so you 
    * can pull in scripts from any URL you want! You can also use this function to remove scripts from the DOM as well
    * Just pass in 'remove' as the 2nd parameter with the 1st parameter being the file you want to remove
    * Removal is good for memory heavy desktop type apps you might be creating
    *@param string The URL of the script you wish to load
    *@param string OPTIONAL If you wish to remove a javascript file from the DOM then just pass in 'remove' as the 2nd parameter
    */
    loadScript:function(url, remove) {
        try{
            // lets check to see if the script is already loaded, if so lets remove it and add a new one
            var scripts = document.getElementsByTagName('script');
            s_len = scripts.length;
            for(var i=0;i<s_len;i++){
                var reg = new RegExp(url+"$");
                if (reg.test(scripts[i].src)) {
                    var p2 = scripts[i];
                    p2.parentNode.removeChild(p2);
                    break;
                }    
            }
            if(remove != 'remove') {
                newScript = document.createElement("script");
                newScript.setAttribute("type", "text/javascript");
                newScript.setAttribute("src", url);
                document.getElementsByTagName('head')[0].appendChild(newScript);
            }
        } catch(e) {
            this.showDebug("MyBIC - loadScript failed URL: "+url+" ErrName: "+e.name+" Msg: "+e.message);    
        }

    },

    /**
    * This method will allow you to create a "command queue" so ajax requests are sent in order they were fired. 
    * You will be able to keep your request/responses in order they were sent
    *@private
    */
    add2Queue:function(queryVars, userCallback) {
        var addAjax = new Array();
        addAjax['queryVars'] = queryVars;
        addAjax['userCallback'] = userCallback;
        addAjax['ignoreCall'] = this.ignoreCall;
        addAjax['abortTimeout'] = this.abort_timeout;
        addAjax['format'] = this.format;
        addAjax['method'] = this.method;
        addAjax['async'] = this.async;
        var opts = new Object();
        opts.format = this.format;
        this._msgQueueInfo.push(opts);
        this.ignoreCall=0;    // reset back to original state
        this.queue.push(addAjax);
    },


    /**
    * Method called after callback function is called to return the class to a default state
    *@private
    */
    restoreDefaults:function()
    {
        this.method = "POST";
        this.format = "JSON";    
        this.callback = "";
        this.abort_timeout = 5000;
        this.failed_threshold = 3;    
        this.async = true;
    
    },

    /**
    * This method will allow you to get all your form fields in ONE magical step!
    * right before your ajaxObj.call statement all you have to do is: var form_vars = ajaxObj.getForm('formid');
    * that will loop through the form id you pass, and put all the form variables into your query string!
    *@param string The ID of the form you wish to submit
    *@return string An encoded query string, ready to send to the server
    */

    getForm:function(formid) {
        var formobj = document.getElementById(formid);
        var fields = new Array();
        var form_len = formobj.elements.length;
        for (var x = 0; x < form_len; x++) {
        switch(formobj.elements[x].type) {
           case 'select-one':
    
            fields.push(encodeURIComponent(formobj.elements[x].name)+'='+encodeURIComponent(formobj.elements[x].options[formobj.elements[x].selectedIndex].value));
            break;
            case 'select-multiple':
            var obj = formobj.elements[x];
                for(var y=0; y < formobj.elements[x].options.length; y++) {
                   if(formobj.elements[x].options[y].selected) {
                            if(formobj.elements[x].options[y].value == ''){
                                fields.push(encodeURIComponent(formobj.elements[x].name)+'='+encodeURIComponent(formobj.elements[x].options[y].text));
                            } else {
                                fields.push(encodeURIComponent(formobj.elements[x].name)+'='+encodeURIComponent(formobj.elements[x].options[y].value));
                            }
                   }
                }
            break;
            case 'radio':
                   if(formobj.elements[x].checked) {
                           fields.push(encodeURIComponent(formobj.elements[x].name)+'='+encodeURIComponent(formobj.elements[x].value));
                   }
            break;
            case 'checkbox':
                if(formobj.elements[x].checked) {
                    fields.push(encodeURIComponent(formobj.elements[x].name)+'='+encodeURIComponent(formobj.elements[x].value));
                }
            break;
            default:
            // text, password, textarea, etc
            fields.push(encodeURIComponent(formobj.elements[x].name)+'='+encodeURIComponent(formobj.elements[x].value));
            break;
        }
        }
        var new_qstring = '&' + fields.join('&');
        return new_qstring;
    },

    /**
    * This method will check the request call after x number of seconds to see if the network call is still hanging
    * You will want to use this when your server might be down and after 5 seconds you'll want to call a function that lets the 
    * user know you're having server issues
    *@private
    */
    endCall:function() {
        try{
            this.net_down_func();
            this.req.abort();
            this.req = null;
            clearInterval(this.end_timer);
            clearInterval(this.readyStateTimer);
            // increase failed requests variable
            this.failed_requests++;
            // reset our queue and call
            this.queue_in_process = 0;
            if(this.queue.length > 0) {
            
                this.call('','','queue');
            }
        
            if(this.debug == 1) { this.showDebug("Request Failed - Network Down! Current Failed Attempts: "+this.failed_requests+"<br>");}
        } catch(e) {
            // server is completely down, call netdown function
            clearInterval(this.end_timer);
            this.net_down_func('disable');
        }
        this.req = null;
    },
    
    /**
    * Default method that will be called when mybic experiences a network down situation, or is disabled
    * This method will pop up a div alerting the user of a general network error
    * You should define your own method to properly fit in with your page layout
    *@private
    */
    down:function(status) {
        var notif_div = '<div id="mybic_notification" style="text-align:center;padding:20px;position:absolute;top:100px;left:100px;width:300px;border:thin solid black;background-color:#F8F021;">';
        notif_div     +=     '<span id="mybic_notif_msg"> MSGHERE </span> <br><br><input type="button" value="OK" onclick="document.getElementById(\'mybic_notification\').style.display=\'none\';"></div>';
        if(status == 'disable') {
            var notif = 'A network issue has disabled network connections for this page. Please reload this page or contact the site administrator';
        } else {
            var notif = 'A network issue has occurred which canceled your last request';
        }
        // lets try and find an existing error message or use the current one in the DOM
        try{
            if(document.getElementById('mybic_notification')) {
                document.getElementById('mybic_notification').style.display='block';
            } else {
                var new_div = document.createElement('div');
                new_div.innerHTML = notif_div;
                document.body.appendChild(new_div);
            }
            document.getElementById('mybic_notif_msg').innerHTML = notif;
        } catch(e) { 
            alert('Network Unavailable: Please re-load page or contact the site administrator');
        }
    },

    /**
    * This method will allow you to lazy load stylesheet source files for on-demand css
    * Just pass in the url of the css file you wish to pull in and you're all set, its not ajaxified so you 
    * can pull in scripts from any URL you want. 
    *@param string The URL of the css file you wish to load /lib/css/myfile.css
    */
    loadCSS:function(url)
    {
        try{
            // lets check to see if the script is already loaded, if so lets remove it and add a new one
            var scripts = document.getElementsByTagName('link');
            s_len = scripts.length;
            if(s_len > 0) {
                for(var i=0;i<s_len;i++){
                    var reg = new RegExp(url+"$");
                    if (reg.test(scripts[i].href)) {
                        var p2 = scripts[i];
                        p2.parentNode.removeChild(p2);
                        break;
                    }    
                }
            }
                newScript = document.createElement("link");
                newScript.setAttribute("type", "text/css");
                newScript.setAttribute("rel", "stylesheet");
                newScript.setAttribute("href", url);
                document.getElementsByTagName('head')[0].appendChild(newScript);
                                                             
        } catch(e) {
            if(this.debug==1) {this.showDebug("MyBIC - loadCSS failed URL: "+url+" ErrName: "+e.name+" Msg: "+e.message)};    
        }

    },
    
    /**
    * This method will let developers view debug information on the screen from not only the system calls but also let them tap into it as well
    *@access public
    *@param string The Message you wish to push to debugging or pass in 'break' and the UI will break a new expandable column for you
    *@param string OPTIONAL: If you pass in break, also send in a string that will show what the break label should be
    *@param int OPTIONAL: If you pass in break, if you pass in a 1 to the function it will allow you have your section autoexpanded
    */
    showDebug:function(msg, label, expand) {
      if(this.debug == 1)
      {
        if(!document.getElementById('mybic_debug')) {
          var errs = document.createElement('div');
          errs.id = 'mybic_errs';
          var deb = document.createElement('div');
          deb.id = 'mybic_debug';
          deb.style.border = "thick solid black";
          deb.style.backgroundColor = "#eeeeee";
          deb.style.padding = "10px"; 
          deb.style.margin = '75px 10px 10px 10px';
          deb.style.width = '90%';
          deb.style.position = 'absolute';
          deb.style.zIndex = '999';
          deb.innerHTML += 'MyBic Debugger: <a href="#" onclick="document.getElementById(\'mybic_errs\').style.display = (document.getElementById(\'mybic_errs\').style.display==\'none\') ? \'\':\'none\'; return false;" >hide/show me!</a>';
          deb.innerHTML += '&nbsp;&nbsp;&nbsp;&nbsp;<a href="#" onclick="document.getElementById(\'mybic_errs\').innerHTML = \'\'; return false;">Clear</a>';
          deb.innerHTML += '&nbsp;&nbsp;&nbsp;&nbsp;<a href="#" onclick="XMLHTTP.prototype.debug_expand(\'block\');return false;">Expand All</a>'; //TODO:
          deb.innerHTML += '&nbsp;&nbsp;&nbsp;&nbsp;<a href="#" onclick="XMLHTTP.prototype.debug_expand(\'none\'); return false;">Contract All</a><br><br>';//TODO:
          deb.appendChild(errs);
          if(document.body) {
            document.body.appendChild(deb);
          } else {
            document.lastChild.appendChild(deb);
          }
        }
        var deb = document.getElementById('mybic_errs');
        if(msg == 'new') {
          this.debugID++;
          var dimg = '<a style="color:white;font-size:1.1em;text-decoration:none" href="#" onclick="XMLHTTP.prototype.debug_expand(this);return false;">+</a>';
          deb.innerHTML += '<div id="mybiclabel_'+this.debugID+'" style="display:block;border:thin solid #999999;padding:2px;background-color:#cccccc;">'+dimg+' label'+this.debugID+': '+label+'</div>';
        } else {
          deb.innerHTML +='<div class="mybic_debug'+this.debugID+'" style="padding:5px;display:none; border:thin solid white;">'+msg+'</div>';
        } 
      }   
    },


    /**
    * This method is used by MyBic to visually show the debug data you've passed in
    *@private
    *@param object The image element that triggers the show/hide functionality
    */
    debug_expand:function(el) {
        var deb = document.getElementById('mybic_errs');
        var deb_len = deb.childNodes.length;
        if(el == 'none' || el == 'block') {
            var label = "mybic_debug";
            var links = deb.getElementsByTagName('a');
            var links_len = links.length;
            for(var q=0;q<links_len;q++) {
                links[q].innerHTML = (el == 'none') ? '+' : '>';    
            }
        } else {
            var label = el.parentNode.id;
            label = label.split('_');
            label = "mybic_debug"+label[1];
        }
        for(var i=0; i<deb_len; i++) {
            // loop through and show the elements with the right classname
            try {
            if(deb.childNodes[i].className.match(new RegExp("(^"+ label + ".*$)"))) {
                if(el == 'none' || el == 'block') {
                    deb.childNodes[i].style.display = el;
                } else {
                    if(deb.childNodes[i].style.display == 'block') {
                        el.innerHTML = '+';
                        deb.childNodes[i].style.display = 'none';
                    } else {
                        el.innerHTML = '>';
                        deb.childNodes[i].style.display = 'block';
                    }
                }
            }
            } catch(e) {}
        }
    },

    /**
    * This method is a wrapper for when you have a callback funciton that has to finish executing before any other ajax calls are made
    * You may be in this situation when ajax calls rely on each other IE don't update this data until I finish processing the other data
    */
    restart:function() {
        this.stopRequest=0;
        this.call('','','queue');
    }
    
};
    
    
/****************************************************/
// INCLUDE JSON.ORG's JSON CLIENT SIDE SERIALIZER
/*
Copyright (c) 2005 JSON.org
*/

/**
*    The global object JSON contains two methods.
*
*    JSON.stringify(value) takes a JavaScript value and produces a JSON text.
*    The value must not be cyclical.
*
*    JSON.parse(text) takes a JSON text and produces a JavaScript value. It will
*    return false if there is an error.
*/
var JSON = function () {
    var m = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        s = {
            'boolean': function (x) {
                return String(x);
            },
            number: function (x) {
                return isFinite(x) ? String(x) : 'null';
            },
            string: function (x) {
                if (/["\\\x00-\x1f]/.test(x)) {
                    x = x.replace(/([\x00-\x1f\\"])/g, function(a, b) {
                        var c = m[b];
                        if (c) {
                            return c;
                        }
                        c = b.charCodeAt();
                        return '\\u00' +
                            Math.floor(c / 16).toString(16) +
                            (c % 16).toString(16);
                    });
                }
                return '"' + x + '"';
            },
            object: function (x) {
                if (x) {
                    var a = [], b, f, i, l, v;
                    if (x instanceof Array) {
                        a[0] = '[';
                        l = x.length;
                        for (i = 0; i < l; i += 1) {
                            v = x[i];
                            f = s[typeof v];
                            if (f) {
                                v = f(v);
                                if (typeof v == 'string') {
                                    if (b) {
                                        a[a.length] = ',';
                                    }
                                    a[a.length] = v;
                                    b = true;
                                }
                            }
                        }
                        a[a.length] = ']';
                    } else if (x instanceof Object) {
                        a[0] = '{';
                        for (i in x) {
                            v = x[i];
                            f = s[typeof v];
                            if (f) {
                                v = f(v);
                                if (typeof v == 'string') {
                                    if (b) {
                                        a[a.length] = ',';
                                    }
                                    a.push(s.string(i), ':', v);
                                    b = true;
                                }
                            }
                        }
                        a[a.length] = '}';
                    } else {
                        return;
                    }
                    return a.join('');
                }
                return 'null';
            }
        };
    return {
        copyright: '(c)2005 JSON.org',
        license: 'http://www.JSON.org/license.html',
/**
*    Stringify a JavaScript value, producing a JSON text.
*/
        stringify: function (v) {
            var f = s[typeof v];
            if (f) {
                v = f(v);
                if (typeof v == 'string') {
                    return v;
                }
            }
            return null;
        },
/*
    Parse a JSON text, producing a JavaScript value.
    It returns false if there is a syntax error.
*/
        parse: function (text) {
            try {
                return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(
                        text.replace(/"(\\.|[^"\\])*"/g, ''))) &&
                    eval('(' + text + ')');
            } catch (e) {
                return false;
            }
        }
    };
}();

//Print Invoice Function
function printInvoice(idSale)
{
	window.open('indexPrint.php?idSale='+idSale,'_blank','scrollbars=yes,resizable=no,menubar=no,status=no,top=100,left=300,width=680,height=600')
}