(function($) {

var pageTracker;
$.trackPage = function(account_id, options) {
var host = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
var script;
var settings = $.extend({}, {onload: true, status_code: 200}, options);
var src = host + 'google-analytics.com/ga.js';

function init_analytics() {
if (typeof _gat != undefined) {
debug('Google Analytics loaded');
pageTracker = _gat._getTracker(account_id);
if(settings.status_code == null || settings.status_code == 200) {
pageTracker._trackPageview();
} else {
debug('Tracking error ' + settings.status_code);
pageTracker._trackPageview("/" + settings.status_code + ".html?page=" + document.location.pathname + document.location.search + "&from=" + document.referrer);
}
if($.isFunction(options.callback)){
options.callback();
}
}
else { 
throw "_gat is undefined";
}
}
load_script = function() {
$.ajax({
type: "GET",
url: src,
success: function() { 
init_analytics(); 
},
dataType: "script",
cache: true
});
}
if(settings.onload == true || settings.onload == null) {
$(window).load(load_script);
} else {
load_script();
}
}
$.trackEvent = function(category, action, label, value) {
if(typeof pageTracker == 'undefined') {
debug('FATAL: pageTracker is not defined');
} else {
pageTracker._trackEvent(category, action, label, value);
}
};
$.fn.track = function(options) {
return this.each(function() {
var element = $(this);
if (element.hasClass('tracked')) {
return false;
} else {
element.addClass('tracked');
} 

var settings = $.extend({}, $.fn.track.defaults, options);
var category = evaluate(element, settings.category);
var action = evaluate(element, settings.action);
var label = evaluate(element, settings.label);
var value = evaluate(element, settings.value);
var event_name = evaluate(element, settings.event_name);
var message = "category:'" + category + "' action:'" + action + "' label:'" + label + "' value:'" + value + "'";

debug('Tracking ' + event_name + ' ' + message);

element.bind(event_name + '.track', function() { 
var skip = settings.skip_internal && (element[0].hostname == location.hostname);

if(!skip) {
$.trackEvent(category, action, label, value);
debug('Tracked ' + message);
} else {
debug('Skipped ' + message);
}
return true;
});
});

function evaluate(element, text_or_function) {
if(typeof text_or_function == 'function') {
text_or_function = text_or_function(element);
}
return text_or_function;
};
};

function debug(message) {
if (typeof console != 'undefined' && typeof console.debug != 'undefined' && $.fn.track.defaults.debug) {
console.debug(message);
}
};

$.fn.track.defaults = {
category : function(element) { return (element[0].hostname == location.hostname) ? 'internal':'external'; },
action : 'click',
label : function(element) { return element.attr('href'); },
value : null,
skip_internal : true,
event_name : 'click',
debug : false
};
})(jQuery);