// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.

if (!this.JSON) {
    JSON = {};
}
(function () {

    function f(n) {
        // Format integers to have at least two digits.
        return n < 10 ? '0' + n : n;
    }

    if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return this.getUTCFullYear()   + '-' +
                 f(this.getUTCMonth() + 1) + '-' +
                 f(this.getUTCDate())      + 'T' +
                 f(this.getUTCHours())     + ':' +
                 f(this.getUTCMinutes())   + ':' +
                 f(this.getUTCSeconds())   + 'Z';
        };

        String.prototype.toJSON =
        Number.prototype.toJSON =
        Boolean.prototype.toJSON = function (key) {
            return this.valueOf();
        };
    }

    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        escapeable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        gap,
        indent,
        meta = {    // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        rep;


    function quote(string) {

// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can safely slap some quotes around it.
// Otherwise we must also replace the offending characters with safe escape
// sequences.

        escapeable.lastIndex = 0;
        return escapeable.test(string) ?
            '"' + string.replace(escapeable, function (a) {
                var c = meta[a];
                if (typeof c === 'string') {
                    return c;
                }
                return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
            }) + '"' :
            '"' + string + '"';
    }


    function str(key, holder) {

// Produce a string from holder[key].

        var i,          // The loop counter.
            k,          // The member key.
            v,          // The member value.
            length,
            mind = gap,
            partial,
            value = holder[key];

// If the value has a toJSON method, call it to obtain a replacement value.

        if (value && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }

// If we were called with a replacer function, then call the replacer to
// obtain a replacement value.

        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }

// What happens next depends on the value's type.

        switch (typeof value) {
        case 'string':
            return quote(value);

        case 'number':

// JSON numbers must be finite. Encode non-finite numbers as null.

            return isFinite(value) ? String(value) : 'null';

        case 'boolean':
        case 'null':

// If the value is a boolean or null, convert it to a string. Note:
// typeof null does not produce 'null'. The case is included here in
// the remote chance that this gets fixed someday.

            return String(value);

// If the type is 'object', we might be dealing with an object or an array or
// null.

        case 'object':

// Due to a specification blunder in ECMAScript, typeof null is 'object',
// so watch out for that case.

            if (!value) {
                return 'null';
            }

// Make an array to hold the partial results of stringifying this object value.

            gap += indent;
            partial = [];

// If the object has a dontEnum length property, we'll treat it as an array.

            if (typeof value.length === 'number' &&
                    !value.propertyIsEnumerable('length')) {

// The object is an array. Stringify every element. Use null as a placeholder
// for non-JSON values.

                length = value.length;
                for (i = 0; i < length; i += 1) {
                    partial[i] = str(i, value) || 'null';
                }

// Join all of the elements together, separated with commas, and wrap them in
// brackets.

                v = partial.length === 0 ? '[]' :
                    gap ? '[\n' + gap +
                            partial.join(',\n' + gap) + '\n' +
                                mind + ']' :
                          '[' + partial.join(',') + ']';
                gap = mind;
                return v;
            }

// If the replacer is an array, use it to select the members to be stringified.

            if (rep && typeof rep === 'object') {
                length = rep.length;
                for (i = 0; i < length; i += 1) {
                    k = rep[i];
                    if (typeof k === 'string') {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            } else {

// Otherwise, iterate through all of the keys in the object.

                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            }

// Join all of the member texts together, separated with commas,
// and wrap them in braces.

            v = partial.length === 0 ? '{}' :
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
                        mind + '}' : '{' + partial.join(',') + '}';
            gap = mind;
            return v;
        }
    }

// If the JSON object does not yet have a stringify method, give it one.

    if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function (value, replacer, space) {

// The stringify method takes a value and an optional replacer, and an optional
// space parameter, and returns a JSON text. The replacer can be a function
// that can replace values, or an array of strings that will select the keys.
// A default replacer method can be provided. Use of the space parameter can
// produce text that is more easily readable.

            var i;
            gap = '';
            indent = '';

// If the space parameter is a number, make an indent string containing that
// many spaces.

            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }

// If the space parameter is a string, it will be used as the indent string.

            } else if (typeof space === 'string') {
                indent = space;
            }

// If there is a replacer, it must be a function or an array.
// Otherwise, throw an error.

            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
                    (typeof replacer !== 'object' ||
                     typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }

// Make a fake root object containing our value under the key of ''.
// Return the result of stringifying the value.

            return str('', {'': value});
        };
    }


// If the JSON object does not yet have a parse method, give it one.

    if (typeof JSON.parse !== 'function') {
        JSON.parse = function (text, reviver) {

// The parse method takes a text and an optional reviver function, and returns
// a JavaScript value if the text is a valid JSON text.

            var j;

            function walk(holder, key) {

// The walk method is used to recursively walk the resulting structure so
// that modifications can be made.

                var k, v, value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            } else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }


// Parsing happens in four stages. In the first stage, we replace certain
// Unicode characters with escape sequences. JavaScript handles many characters
// incorrectly, either silently deleting them, or treating them as line endings.

            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return '\\u' +
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }

// In the second stage, we run the text against regular expressions that look
// for non-JSON patterns. We are especially concerned with '()' and 'new'
// because they can cause invocation, and '=' because it can cause mutation.
// But just to be safe, we want to reject all unexpected forms.

// We split the second stage into 4 regexp operations in order to work around
// crippling inefficiencies in IE's and Safari's regexp engines. First we
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
// replace all simple value tokens with ']' characters. Third, we delete all
// open brackets that follow a colon or comma or that begin the text. Finally,
// we look to see that the remaining characters are only whitespace or ']' or
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

            if (/^[\],:{}\s]*$/.
test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

// In the third stage we use the eval function to compile the text into a
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
// in JavaScript: it can begin a block or an object literal. We wrap the text
// in parens to eliminate the ambiguity.

                j = eval('(' + text + ')');

// In the optional fourth stage, we recursively walk the new structure, passing
// each name/value pair to a reviver function for possible transformation.

                return typeof reviver === 'function' ?
                    walk({'': j}, '') : j;
            }

// If the text is not JSON parseable, then a SyntaxError is thrown.

            throw new SyntaxError('JSON.parse');
        };
    }
})();
function SmartEncode(value){
	var retVal = "";
	try
	{
		retVal = encodeURIComponent(value);
	}
	catch(e)
	{
		retVal = escape(value);
	}
	return retVal;
}

function IsValidObject(value){ 
	var ret = false;
	if("undefined" != typeof(value) && null != value)
		ret = true; 
	return ret; 
}

var ableToOpen;

function SightMaxMonitor(propertyName){
	this.PropertyName = propertyName;
	this.SiteID	= 1;
	this.QueueID = 2;
	this.BrowserID = "e2672805-7da6-4204-bf0d-23360ac511c5";
	this.SessionID = "b3194656-8546-4744-b773-acbc306b27a8";
	this.Path = "http://www.nestlearning.com/SightMaxAgentInterface/";
	this.AccountID = 1;	
	this.ChatWindowOptions = "width=490,height=404,resizable=no,scrollbars=no,menubar=no,status=no";
	this.InviteDivTopOffset	= 25;
	this.InviteDivLeftOffset = 200;	
	this.InviteLocation = this.CreateInviteDiv();
	this.TextInviteLocation = this.CreateTextInviteDiv();
	ableToOpen = false;	
	
	this.TextInviteLocation.hide();
	jQuery(this.TextInviteLocation).appendTo("body");
	
	this.InviteLocation.hide();
	jQuery(this.InviteLocation).appendTo("body");
	
	this.CommandTimerID	= null;	
	this.Attempts = 0;
	this.ImageCheckFrequency = 1000;
	this.ImageCheckTimeSpan	= 5000;
	this.LastHeight	= -1;
	this.UniqueID = 0;
	this.bConnected	= true;	
	this.lastTop = -1;
	this.bTopChanged = true;
	this.scrollTimeout = -1;
	this.inviteResponse = null;	
	var pd = parent.document;	
	var screenRes = "";
	
	if(IsValidObject(screen) && IsValidObject(screen.width) && IsValidObject(screen.height) && IsValidObject(screen.colorDepth))
		screenRes = screen.width + 'x' + screen.height + 'x' + screen.colorDepth;
		
	var currentPage	= "";
	if(IsValidObject(pd.location.protocol) && IsValidObject(pd.location.hostname) && IsValidObject(pd.location.pathname))
		currentPage = pd.location.protocol + '//' + pd.location.hostname + pd.location.pathname;

	var referrer = pd.referrer;
	if(!IsValidObject(referrer) || referrer == "")
		referrer = "";
		
	var pageTitle = pd.title;
	if(!IsValidObject(pageTitle) || pageTitle == "")
		pageTitle = "";
	else
		pageTitle = pageTitle;
		
	var queryString	= pd.location.search;
	if(!IsValidObject(queryString) || queryString == "")
		queryString = "";
		
	var cookies	= pd.cookie;
	if(!IsValidObject(cookies) || cookies == "")
		cookies = "";
	
	var isSecure = pd.location.protocol == "https:";	
	this.DataType = "json";
	this.RequestMethod = "POST";
	this.RequestPath = this.Path + "Proxy.ashx?WcfAddress=";	
	var location = pd.location.protocol + "//" + pd.location.host;	
	this.SiteAddress="proxyVisitorWebsite/";
	this.ChatAddress = "proxyVisitorChat/";
	
	if(this.Path.toLowerCase().indexOf(location.toLowerCase()) != 0)
	{
	    //cross domain: use GET, switch to JSON w/ padding
	    this.DataType = "jsonp";
	    this.RequestMethod="GET";
	    cookies = SmartEncode(cookies);
	    referrer = SmartEncode(referrer);
	    queryString = SmartEncode(queryString);
	}	
	
	var data = {'accountDataBaseID':this.AccountID, 
	'websiteDataBaseID':this.SiteID, 
	'browserID':this.BrowserID, 
	'sessionID':this.SessionID, 
	'isSecureConnection': isSecure,
	'screenResolution':screenRes,
	'newPage':currentPage,
	'referrer':referrer,
	'pageTitle':pageTitle,
	'cookies':cookies,
	'queryString':queryString};
	
	var instance = document.sightMaxMonitor;
	
	this.AjaxPost(this.SiteAddress + "AddPageToVisitorAgentSession", data, this.EndAddPageToSession, this.OnError);	
}

SightMaxMonitor.prototype.CreateTextInviteDiv = function(){

     var inviteDiv = jQuery("<div/>").css({'position':'absolute', 
    'z-index':'9999', 
    'top':'130px', 
    'left':'150px', 
    'height':'211px', 
    'width':'250px',  
    'background-image':'url(\'' + this.Path + '/Images/invitationText.png\')', 
    'background-repeat':'no-repeat'});
    
     var acceptDiv = jQuery("<div/>").css({'width':'112px', 
    'position':'absolute', 
    'left':'122px', 
    'top':'171px', 
    'height':'32px'})
    .click(function(){    
        var instance = document.sightMaxMonitor;
	    instance.ReportChatInvitation(true);   
    });
    
   var declineDiv= jQuery("<div/>").css({'width':'22px', 
    'position':'absolute', 
    'left':'225px', 
    'top':'7px', 
    'height':'29px'})
    .click(function(){
        var instance = document.sightMaxMonitor;
	    instance.ReportChatInvitation(false);        
    });
        
   var textDiv = jQuery('<div/>').css({'overflow': 'auto', 
    'width': '127px', 
    'position':'absolute',
    'left':'115px',
    'top':'53px',
    'height': '107px',
    'font':'italic normal normal 100% serif',
    'font-size': 'small'})
    .attr('id','TextInviteTA');          
        
    inviteDiv.append(acceptDiv).append(declineDiv).append(textDiv);
    
    return inviteDiv;
}

SightMaxMonitor.prototype.CreateInviteDiv = function(){    
    var inviteDiv = jQuery("<div/>").css({'position':'absolute', 
    'z-index':'9999', 
    'top':'130px', 
    'left':'150px', 
    'height':'211px', 
    'width':'250px',  
    'background-image':'url(\'' + this.Path + 'Images/invitation.png\')', 
    'background-repeat':'no-repeat'});
    
    var acceptDiv = jQuery("<div/>").css({'width':'112px', 
    'position':'absolute', 
    'left':'122px', 
    'top':'171px', 
    'height':'32px'})
    .click(function(){    
        var instance = document.sightMaxMonitor;
	    instance.ReportChatInvitation(true);   
    });
    
     var declineDiv= jQuery("<div/>").css({'width':'22px', 
    'position':'absolute', 
    'left':'225px', 
    'top':'7px', 
    'height':'29px'})
    .click(function(){
        var instance = document.sightMaxMonitor;
	    instance.ReportChatInvitation(false);        
    });
    
    inviteDiv.append(declineDiv).append(acceptDiv);
    
    return inviteDiv;
}

SightMaxMonitor.prototype.ReportChatInvitation = function(accepted){

    if(accepted)
        this.ClientAcceptInvite();
    else
        this.ClientCancelInvite();

    var data = {
    'accountID':this.AccountID,
    'websiteID':this.SiteID,
    'browserID':this.BrowserID,
    'sessionID':this.SessionID,
    'accepted':accepted};		        
	
	this.AjaxPost(this.ChatAddress + "ReportChatInvitationResponse", data, null, this.OnError);
}

SightMaxMonitor.prototype.OnError = function(error){
    //alert(error);
}

SightMaxMonitor.prototype.SetCommandTimer = function(milliseconds){
	if(null == milliseconds)
		milliseconds = this.ImageCheckTimeSpan;
		
	this.CommandTimerID = window.setTimeout(this.PropertyName + ".Process();", milliseconds);
}

SightMaxMonitor.prototype.ClearCommandTimer = function(){
	window.clearTimeout(this.CommandTimerID);
}

SightMaxMonitor.prototype.Process = function(){
	var gotImage = false;
	
	if(!this.PendingImageDownload){
		this.SendPollRequest();
	}
	else{
		this.Attempts++;
		if(this.Attempts > 6){
			this.PendingImageDownload = false;
			this.SendPollRequest();
		}
		else{
			gotImage = true;	
		}
	}
	
	if(this.bConnected){
		if(gotImage)
			this.SetCommandTimer(this.ImageCheckFrequency);
		else
			this.SetCommandTimer(this.ImageCheckTimeSpan);
	}			
}

SightMaxMonitor.prototype.SendPollRequest = function(){
	var data = {
	'accountDataBaseID':this.AccountID,
	'websiteDataBaseID':this.SiteID,
	'browserID':this.BrowserID,
	'sessionID':this.SessionID};
	
	this.AjaxPost(this.SiteAddress + "GetVisitorAgentSessionMonitorCommand", data, this.EndPollRequest, null);
}

SightMaxMonitor.prototype.EndPollRequest = function(result){
    //successfull poll
    this.PendingImageDownload= false;    
    this.Attempts = 0;
    this.HandleMonitorCommand(result.GetVisitorAgentSessionMonitorCommandResult);
    
}

SightMaxMonitor.prototype.HandleMonitorCommand = function(command){
    switch(command)
	{
		case 10:
			break;
		case 20:
			this.InviteChat();
			break;
        case 25:
            this.TextInvite()
            break;			
		case 35:
			this.InvokeChat();
			break;
		case 40:
			this.bConnected = false;
			break;
		case 50:
			this.SendCoBrowseData();
			break;
	    case 75:
	        this.SessionPush();
	        break;
		default:
			break;
	}
}

SightMaxMonitor.prototype.EndAddPageToSession = function(result){
    //success! Check the monitor result then start polling.   
   var command = result.AddPageToVisitorAgentSessionResult;
  
   this.HandleMonitorCommand(command);
    
   this.SetCommandTimer(this.ImageCheckFrequency);
}

SightMaxMonitor.prototype.AjaxPost = function(method, data, callback, error){
	this.PendingImageDownload	= true;
        
    var url = this.RequestPath + method;
    var stringData = JSON.stringify(data);
    
    jQuery.ajax({
    url:url,
    data: stringData,
    type: this.RequestMethod,
    processData: true,
    contentType: "application/json",
    timeout: 5000,
    dataType: this.DataType,
    success: function(msg){
        var instance = document.sightMaxMonitor; 
        if(callback == instance.EndAddPageToSession){
            instance.EndAddPageToSession(msg);
        }
        else if(callback == instance.EndGetSessionPush){
            instance.EndGetSessionPush(msg);
        }
        else if(callback == instance.EndPollRequest){
            instance.EndPollRequest(msg);
        }
        else if(callback == instance.EndGetTextInvite){
            instance.EndGetTextInvite(msg);
        }    
    },
    error: error
    });
}

SightMaxMonitor.prototype.TextInvite = function(){
    var data = {
    'accountDatabaseID':this.AccountID,
    'websiteDatabaseID':this.SiteID,
    'browserID':this.BrowserID,
    'sessionID':this.SessionID};
    
    this.AjaxPost(this.SiteAddress + "GetInviteText", data, this.EndGetTextInvite, null);
}

SightMaxMonitor.prototype.EndGetTextInvite = function(result){
        jQuery("#TextInviteTA").html(result.GetInviteTextResult);
        jQuery(this.TextInviteLocation).show();
}

SightMaxMonitor.prototype.SessionPush = function(){
    var data = {
    'accountDatabaseID':this.AccountID,
    'websiteDatabaseID':this.SiteID,
    'browserID':this.BrowserID,
    'sessionID':this.SessionID};    
    
    this.AjaxPost(this.SiteAddress + "GetVisitorAgentSessionForcePush", data, this.EndGetSessionPush, null);
}

SightMaxMonitor.prototype.EndGetSessionPush = function(result){
    window.location = result.GetVisitorAgentSessionForcePushResult;   
}

SightMaxMonitor.prototype.OpenChat = function(startType){
	if("undefined" == typeof(startType))
		startType = "";
	var WinStr = this.Path + "PreChatSurvey.aspx?accountID=" + this.AccountID + "&siteID=" + this.SiteID + "&queueID=" + this.QueueID + "&startType=" + startType;
	window.open(WinStr, 'chatWindow', this.ChatWindowOptions);
}

SightMaxMonitor.prototype.InvokeChat = function(){
	this.OpenChat(4);//"OperatorForcedChat"
}


SightMaxMonitor.prototype.InviteChat = function(){		
	try
	{
		//this.CheckScroll();//place <div> before making visible.
		if(ableToOpen){
		    var WinStr = this.Path + "PreChatSurvey.aspx?accountID=" + this.AccountID + "&siteID=" + this.SiteID + "&queueID=" + this.QueueID + "&startType=4";
		    var win = window.open(WinStr, 'sightMaxChatWindow', this.ChatWindowOptions);
		    if(null == win){
		        ableToOpen = false;
		        //this is called if the window fails to open
                 jQuery(this.InviteLocation).show();
                this.SetScrollTimer();
            }
            else{
                //if the window does open, we need to report that the invite was successful        
		        var data = {'accountID':this.AccountID, 'websiteID':this.SiteID, 'browserID':this.BrowserID, 'sessionID':this.SessionID, 'accepted':true};
		        		        
		        this.AjaxPost(this.ChatAddress + "ReportChatInvitationResponse", data, null, null);
            }
        }
        else{
            jQuery(this.InviteLocation).show();
            this.SetScrollTimer();
        }		
	}
	catch(e)
	{
	}
}

SightMaxMonitor.prototype.ClientAcceptInvite = function(){
	this.HideInvite();
	this.OpenChat(3); //"OperatorInvitedChat"
}

SightMaxMonitor.prototype.OpCancelInvite = function(){	
	this.HideInvite();
}

SightMaxMonitor.prototype.ClientCancelInvite = function(){
	this.HideInvite();
}

SightMaxMonitor.prototype.HideInvite = function(){
     jQuery(this.TextInviteLocation).hide();
     jQuery(this.InviteLocation).hide();
	try
	{ 
		this.ClearScrollTimer();
	}
	catch(e)
	{
	}	
}

SightMaxMonitor.prototype.PlaceInvite = function(theLeft, theTop){
	try
	{
		 jQuery(this.InviteLocation).css("top", (theTop + this.InviteDivTopOffset) + "px");
		 jQuery(this.InviteLocation).css("visibility", (theLeft + this.InviteDivLeftOffset) + "px");
	}
	catch(e)
	{
	}
}

SightMaxMonitor.prototype.SetScrollTimer = function(){
	this.scrollTimeout = window.setTimeout(this.PropertyName +  ".CheckScroll();", 250);
}

SightMaxMonitor.prototype.ClearScrollTimer = function(){
	window.clearTimeout(this.scrollTimeout);
}

SightMaxMonitor.prototype.CheckScroll = function(){
	var thisTop = -1;
	var thisLeft = -1;
	if("undefined" == typeof(document.body.scrollTop)){
		thisTop = window.pageYOffset;
		thisLeft = window.pageXOffset;
	}
	else{
		thisTop = document.body.scrollTop;
		thisLeft = document.body.scrollLeft;
	}
	
	if(thisTop != this.lastTop){
		this.bTopChanged = true;
	}
	else if(this.bTopChanged){
		this.PlaceInvite(thisLeft, thisTop);
		this.bTopChanged = false;
	}
	this.lastTop = thisTop;
	this.SetScrollTimer();
}

jQuery(document).ready(function(){
document.sightMaxMonitor = new SightMaxMonitor("document.sightMaxMonitor");
});