try {
	
    var alt_url = window.location.href;
    var alt_url_en = encodeURIComponent(alt_url);
    var alt_pathname = document.location.pathname.replace(/\/$/,"");
    var alt_dynamic_url = '//track.agentleads.sg/';
        var alt_datajs = 'data.js.php';
    var alt_sid = 0;
    var alt_server_uid = false;
    var alt_uid = false;
    var alt_sess = 0;
    var alt_sess_pv = 0;
    var alt_date = new Date();
    var alt_page_url = alt_url;
    var alt_page_title = "";
    var alt_referrer = document.referrer;
    var alt_ready_bound = false;
    var alt_is_ready = false;
    var alt_debug = 1;
    var alt_already_run_flag = false;
    var alt_cookiedomain = '';
    var alt_ro = 1;
    var alt_use_cookies = true;
    var alt_live = 0;
    var alt_live_filter_products = false;
    var alt_abk_wg = 0;
	
	var alt_browser_detect = {
    	    
		init: function() {
			this.browser = this.search_string(this.data_browser) || 'An unknown browser';
			this.version = this.search_version(navigator.userAgent)
				|| this.search_version(navigator.appVersion)
				|| "an unknown version";
			this.OS = this.search_string(this.dataOS) || "an unknown OS";
			if (this.OS == 'iPhone') {
				if (navigator.appVersion.indexOf('CriOS') > -1) {
					this.browser = 'Chrome';
				}
				if (navigator.appVersion.indexOf('FxiOS') > -1) {
					this.browser = 'Firefox';
				}
			}
		},
		search_string: function(data) {
			for (var i = 0; i < data.length; i++) {
				var data_string = data[i].string;
				var data_prop = data[i].prop;
				this.version_search_string = data[i].version_search || data[i].identity;
				if (data_string) {
					if (data_string.indexOf(data[i].sub_string) != -1) {
						return data[i].identity;
					}
				} else if (data_prop) {
					return data[i].identity;
				}
			}
		},
		search_version: function(data_string) {
			var index = data_string.indexOf(this.version_search_string);
			if (index == -1) {
				return;
			}
			return parseFloat(data_string.substring(index + this.version_search_string.length + 1));
		},
		data_browser: [
			{
				string: navigator.userAgent,
				sub_string: "Edge",
				identity: "Edge"
			},
			{
				string: navigator.userAgent,
				sub_string: "Chrome",
				identity: "Chrome"
			},
			{ 	string: navigator.userAgent,
				sub_string: "OmniWeb",
				version_search: "OmniWeb/",
				identity: "OmniWeb"
			},
			{
				string: navigator.vendor,
				sub_string: "Apple",
				identity: "Safari",
				version_search: "Version"
			},
			{
				prop: window.opera,
				identity: "Opera",
				version_search: "Version"
			},
			{
				string: navigator.vendor,
				sub_string: "iCab",
				identity: "iCab"
			},
			{
				string: navigator.vendor,
				sub_string: "KDE",
				identity: "Konqueror"
			},
			{
				string: navigator.userAgent,
				sub_string: "Firefox",
				identity: "Firefox"
			},
			{
				string: navigator.vendor,
				sub_string: "Camino",
				identity: "Camino"
			},
			{		// for newer Netscapes (6+)
				string: navigator.userAgent,
				sub_string: "Netscape",
				identity: "Netscape"
			},
			{
				string: navigator.userAgent,
				sub_string: "MSIE",
				identity: "Explorer",
				version_search: "MSIE"
			},
			{ //#131124
				string: navigator.userAgent,
				sub_string: "Trident",
				identity: "Explorer",
				version_search: "rv"
			},
			{
				string: navigator.userAgent,
				sub_string: "Gecko",
				identity: "Mozilla",
				version_search: "rv"
			},
			{ 		// for older Netscapes (4-)
				string: navigator.userAgent,
				sub_string: "Mozilla",
				identity: "Netscape",
				version_search: "Mozilla"
			}
		],
		dataOS : [
			{
				   string: navigator.userAgent,
				   sub_string: "Android",
				   identity: "Android"
			},
			{
					string: navigator.platform,
					sub_string: "Win",
					identity: "Windows"
			},
			{
					string: navigator.platform,
					sub_string: "Mac",
					identity: "Mac"
			},
			{
				   string: navigator.userAgent,
				   sub_string: "iPhone",
				   identity: "iPhone" // also ipod
			},
			{
				   string: navigator.userAgent,
				   sub_string: "iPad",
				   identity: "iPad"
			},
			{
					string: navigator.platform,
					sub_string: "Linux",
					identity: "Linux"
			}
		]
	};
	
	
	var alt_load_file = function(file_name, file_type) {
        
        
        if( file_type == 'js' )
        {
			var file_ref = document.createElement('script');
			file_ref.setAttribute('type', 'text/javascript');
			file_ref.setAttribute('src', file_name);
        }
        else if ( file_type === 'css' ) 
        {
			var file_ref = document.createElement('link');
			file_ref.setAttribute('rel', 'stylesheet');
			file_ref.setAttribute('type', 'text/css');
			file_ref.setAttribute('href', file_name);
		}
		
		if (typeof file_ref !== 'undefined') {
			document.getElementsByTagName('head')[0].appendChild(file_ref);
		}
	}


	var alt_load_data = function (params, raw_data) {
		
		var params_arr = [];
		
		var custom = raw_data || '';
		if (custom !== '' && custom[0] !== '&') {
			custom = '&' + custom;
		}
		
		for (var key in params) {
			if (!params.hasOwnProperty(key)) {
				continue;
			}
			params_arr.push(key + '=' + params[key]);
		}
		
		params_arr.push('ts=' + Math.ceil(10000 * Math.random()));
		
		alt_load_file(alt_dynamic_url + alt_datajs + '?' + params_arr.join('&') + custom, 'js');
	}
	
	function alt_log_error(msg) {
		
		alt_uid = alt_read_cookie('alt_uid');
		alt_load_file(alt_dynamic_url + 'logger.js.php?sid=' + alt_sid + '&uid=' + alt_uid + '&elo=' + 
			encodeURIComponent(msg) + '&url=' + encodeURIComponent(window.location.href) + 
			'&browser=' + encodeURIComponent(navigator.appCodeName + ' ' + navigator.appVersion), 'js');
	}

	function alt_log_console(msg) {
		if (alt_debug == 0) {
			return;
		}
		window.console && console.log(msg);
	}
	
	
	function alt_create_cookie(name, value, days) 
    {
    	if(alt_use_cookies)
    	{
    		var expires = '';
    		if (typeof days !== 'undefined') 
    		{
    			var date = new Date();
    			date.setTime(date.getTime() + parseInt(days * 24 * 60 * 60 * 1000));
    			if (days != 0) {
    				expires = '; expires=' + date.toGMTString();
    			}
    		}
    		document.cookie = name + '=' + value + expires + '; path=/; domain=' + alt_cookiedomain + '; secure; SameSite=Lax';
    	}
    	else
    	{
    		document.cookie = name + '=0;expires=Thu, 01 Jan 1970 00:00:01 GMT; path=/; domain=' + alt_cookiedomain + '; secure; SameSite=Lax';	
    		if (days==0) {
    			alt_create_storage_value(name, value, parseInt(30 * 60));
    		} else {
    			alt_create_storage_value(name, value, parseInt(days * 24 * 60 * 60));
    		}
    	}						
    }
    	
    function alt_read_cookie(name) 
    {	
    	
    	var alt_read_real_cookie = function (name){
    		var nameEQ = name + '=';
    		var ca = document.cookie.split(';');
    		for (var i = 0; i < ca.length; i++) {
    			var c = ca[i];
    			while (c.charAt(0) == ' ') {
    				c = c.substring(1,c.length);
    			}
    			if (c.indexOf(nameEQ) == 0) {	
    				return c.substring(nameEQ.length,c.length);
    			}
    		}
    		return null;
    	};
    	
    	if(alt_use_cookies == true){
    		var cookie = alt_read_real_cookie(name);	
    		if(cookie != null){
    			return cookie;
    		}
    	}
    	
    	var item = alt_read_storage_value_all(name);						
    	if (item !== null) {
    		if(alt_use_cookies ==true){
    			var expireDays=parseInt((item.expire-(new Date().getTime()/1000))/24 / 60 / 60);
    			alt_create_cookie(name, item.value, expireDays);			
    		}
    		return item.value;
    	}	
    	item = alt_read_session_value(name);		
    	if (item !== null) {
    		if(alt_use_cookies ==true){
    			alt_create_cookie(name,item, 0);
    		}			
    		return item;
    	}
    	return alt_read_real_cookie(name);		
    }

	
	
	//Storage module
	(function() {
		function _create_storage_value(storage_object, key, val) {
			storage_object.setItem(key, JSON.stringify(val));
		}
		
		function _read_storage_value(storage_object, key, default_value) {
			var val = storage_object.getItem(key);
			if (val === null) {
				if (typeof default_value !== 'undefined') {
					val = default_value;
				}
			} else {
				val = JSON.parse(val);
			}
			return val;
		}
		
		function _delete_storage_value(storage_object, key) {
			storage_object.removeItem(key);
		}
		
		window.alt_create_storage_value = function(key, val, expire_time) {
			var expire_time = expire_time || 0;
			return _create_storage_value(localStorage, key, {
				expire: expire_time > 0 ? parseInt(Date.now() / 1000) + expire_time : expire_time,
				value: val
			});
		};
		
		window.alt_read_storage_value_all = function(key, default_value) {
			var val = _read_storage_value(localStorage, key);
			if (val !== null) {
				if (val.expire == 0 || (!val.expire < parseInt(Date.now() / 1000))) {
					return val;
				} 
			}
			return null;
			
		};
		
		window.alt_read_storage_value = function(key, default_value) {
			var val = alt_read_storage_value_all(key);					
			if (val !== null) {
				val = val.value;				
			}else if (typeof default_value !== 'undefined') {
				val = default_value;
			}			
			return val;
		};
		window.alt_delete_storage_value = function(key) {
			return _delete_storage_value(localStorage, key);
		};
		window.alt_create_session_value = function(key, val) {
			return _create_storage_value(sessionStorage, key, val);
		};
		window.alt_read_session_value = function(key, default_value) {
			return _read_storage_value(sessionStorage, key, default_value);
		};
		window.alt_delete_session_value = function(key) {
			return _delete_storage_value(sessionStorage, key);
		};
	})();

	
	function alt_listen(evnt, elem, func) {
		elem.addEventListener(evnt, func, false);
		return false;
	}
	
	function alt_in_array(item, array) {	
		var o = {};	
		for (var i = 0; i < array.length; i++) {
			o[array[i]] = '';	
		}
		return (item in o);
	}

	function alt_bind_ready() {

		if (alt_ready_bound) {
			return;
		}
		
		alt_ready_bound = true;

		// Mozilla, Opera and webkit nightlies currently support this event
		if (document.addEventListener) {
			// Use the handy event callback
			document.addEventListener('DOMContentLoaded', function() {
				document.removeEventListener('DOMContentLoaded', arguments.callee, false);
				alt_dom_ready();
			}, false);
		} else if (document.attachEvent) { // If IE event model is used
			// ensure firing before onload,
			// maybe late but safe also for iframes
			document.attachEvent('onreadystatechange', function() {
				if (document.readyState === 'complete') {
					document.detachEvent('onreadystatechange', arguments.callee);
					alt_dom_ready();
				}
			});

			// If IE and not an iframe
			// continually check to see if the document is ready
			if (document.documentElement.doScroll && window == window.top) {
				(function(){
					if (alt_is_ready) {
						return;
					}

					try {
						// If IE is used, use the trick by Diego Perini
						// http://javascript.nwbox.com/IEContentLoaded/
						document.documentElement.doScroll('left');
					} catch(error) {
						setTimeout(arguments.callee, 0);
						return;
					}

					// and execute any waiting functions
					alt_dom_ready();
				})();
			}
		}

		// A fallback to window.onload, that will always work
		alt_listen('load', window, alt_dom_ready);
	}
	
	
	function alt_gup(name) {
		
		name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");		
		var regexS = "[\\?&]" + name + "=([^&#]*)";
		var regex = new RegExp(regexS);
		var results = regex.exec(window.location.href);
		if (results == null) {
			return '';
		} else {
			return results[1];
		}
	}
	
	
	var decorate_links_with_aluid = function(altuid) {
		
		var host = document.location.host.toLowerCase();
		var all_links = document.getElementsByTagName("a");
		for(var i=0; i<all_links.length; i++)
		{
			var link_element = all_links[i];
			var url = link_element.href;
			if( typeof(url) != "undefined" && url.search("javascript") == -1 )
			{
				if( url.toLowerCase().search(host) == -1 ) {
					
					var delimiter = "?";
					var url_parts = url.split("?");
					if( url_parts.length > 1 ) {
						delimiter = "&";
					}
					
					var new_url = url+""+delimiter+"altu="+altuid;
					link_element.href = new_url;
				}	
			}
		}
	}

	function alt_start()
	{
		try {
			
			var wait = false;
			if( typeof(alt_hold_execution) == "function" ) {
				wait = alt_hold_execution();
			}
			
			if (wait) 
			{
				alt_log_console('alt wait');
				window.setTimeout(function(){
					alt_start();
				}, 500);
				return;
			}

			if (alt_already_run_flag) {
				return;
			}

			alt_already_run_flag = true;
			
			// cookie domain (starts with dot)
			if (!alt_cookiedomain) {
				if (document.location.host.substring(0, 4) === 'www.') {
					alt_cookiedomain = '.' + document.location.host.substring(4);
				} else {
					alt_cookiedomain = '.' + document.location.host;
				}
			}
			
			alt_browser_detect.init();

			// bots
			if (typeof navigator.userAgent !== 'undefined') {
				if (navigator.userAgent.search('Googlebot') > -1) {
					return;
				}
				if (navigator.userAgent.search('BrowserMob') > -1) {
					return;
				}
			}


			// if unsupported browser
			if (!alt_in_array(alt_browser_detect.browser, ['Explorer', 'Safari', 'Firefox', 'Chrome', 'Mozilla', 'Opera', 'Edge'])) {
				return; 
			}

			// Opera allowed only on android
			if ((alt_browser_detect.browser === 'Opera') && (alt_browser_detect.OS !== 'Android')) {
				return;
			}
			
			
			alt_sid = "61223";
alt_cookiedomain = ".yasserkhan.sg";
alt_ro = 0;

if( document.location.hostname.replace(/^www./,'') != "yasserkhan.sg" ) {
	alt_ro = 1;
}

if( alt_pathname == "/coaching/mastery-coaching" ) {
	alt_live = 1;
	alt_live_filter_products = "2493459,3243139";
}
			
			// check for user cookie
			alt_uid = alt_read_cookie('alt_uid');
			if (alt_uid == null) {
				
				// check if altu is available in URL, take that and set in cookie
				alt_uid = alt_gup("altu");
				if( alt_uid == "" )
				{
					alt_uid = Math.ceil((10000000000000 * Math.random()) + alt_date.getTime());
					alt_create_cookie('alt_uid', alt_uid, 365);

					// check cookies support
					alt_uid = alt_read_cookie('alt_uid');

					if ((typeof alt_uid === 'undefined') || alt_uid == null || isNaN(alt_uid)) {
						alt_log_console('alt cookies disabled or cookiedomain problem');
						return;
					}
					
				} else {
					alt_uid = parseInt(alt_uid);
					alt_create_cookie('alt_uid', alt_uid, 365); // refresh
				}
				
			} else {
				alt_create_cookie('alt_uid', alt_uid, 365); // refresh
			}
			
			/* add altuid to external urls to track cross domains */
			decorate_links_with_aluid(alt_uid);
			
			
			var alt_str = '';
			
			alt_str += '&lv=' + alt_live;
			alt_str += '&abkw=' + alt_abk_wg;
			
			if( typeof(alt_live_filter_products) == "string" && alt_live_filter_products != "" ) {
				alt_str += '&lv_fl_pd=' + alt_live_filter_products;
			}
			alt_str += '&ro=' + alt_ro;
			var alt_lvt = alt_read_cookie('alt_lvt');
			alt_str += '&lvt=' + alt_lvt;
			var usertime = Math.round(alt_date.getTime() / 1000);
			alt_create_cookie('alt_lvt', usertime, 365);
			
			alt_str += '&ut=' + usertime;
			
			var new_session = false;
			var session_reset = false;
			if (alt_lvt != null && (usertime - parseInt(alt_lvt)) > 3600) {
				session_reset = true;
			}
			
			alt_sess = alt_read_cookie('alt_sess');
			if ((alt_sess == null) || (null == alt_read_cookie('alt_sess_pv')) ||  session_reset) {
				if (alt_sess == null) {
					alt_sess = 0;
				}
				new_session = true;
				alt_sess = parseInt(alt_sess) + 1;
				alt_create_cookie('alt_sess', alt_sess, 365);
			}
			alt_str += '&ses=' + alt_sess;

			alt_sess_pv = parseInt(alt_read_cookie('alt_sess_pv'));
			if (isNaN(alt_sess_pv) || session_reset) {
				alt_sess_pv = 1;
			}
			alt_create_cookie('alt_sess_pv', alt_sess_pv + 1, 0);
			alt_str += '&spv=' + alt_sess_pv;			
			alt_str += '&snew=' + new_session;			

			alt_str += '&pti=' + encodeURIComponent(document.title);
			alt_str += '&ref=' + encodeURIComponent(document.referrer);

			alt_str += "&br=" + alt_browser_detect.browser + "&v=" + alt_browser_detect.version + "&os=" + alt_browser_detect.OS;

			alt_str += "&th=" + alt_date.getHours();
			alt_str += "&tdw=" + alt_date.getDay();
			alt_str += "&tdm=" + alt_date.getDate();


			alt_load_data({
				a: 'pv',
				sid: alt_sid,
				uid: alt_uid,
				pt: 'pv',
				url: alt_url_en
			}, alt_str);
			
		} catch(err) {
			console.log(err.message);
		}
	}


	// call alt_start - this must be after alt_start definition due to FF issue
	function alt_dom_ready() {
		if (!alt_is_ready) {
			alt_is_ready = true;
			alt_start();
		}
	}
	
	// end startearly code

	alt_bind_ready();
	
} catch(err) {
	
	// allow page to finish loading before reporting.
	setTimeout(function() { 
		alt_log_error('alt error: ' + err.message + err.stack);
	}, 8000); 
}