var BPTracking = new function _BasePlatformTracking() {
    
    var cookie_duration = 30 * 86400;
    this.track = function() {
        console.log("start tracking");
        var utm_source = this.getParameterByName("utm_source");
        
        if(utm_source) {
            $.cookie("utm_source", utm_source, {
                expires: cookie_duration,
                path: '/'
            });
        }
        
        var utm_campaign = this.getParameterByName("utm_campaign");
        
        if(utm_campaign) {
            $.cookie("utm_campaign", utm_campaign, {
                expires: cookie_duration,
                path: '/'
            });
        }
        
        var utm_medium = this.getParameterByName("utm_medium");
        if(utm_medium) {
            $.cookie("utm_medium", utm_medium, {
                expires: cookie_duration,
                path: '/'
            });
        }
        
        var utm_term = this.getParameterByName("utm_term");
        if(utm_term) {
            $.cookie("utm_term", utm_term, {
                expires: cookie_duration,
                path: '/'
            });
        }
        
        var utm_content = this.getParameterByName("utm_content");
        if(utm_content) {
            $.cookie("utm_content", utm_content, {
                expires: cookie_duration,
                path: '/'
            });
        }
        
        var referral_id = this.getParameterByName("referral_id");
        if(referral_id) {
            $.cookie("referral_id", referral_id, {
                expires: cookie_duration,
                path: '/'
            });
        }
    };
    
    this.getParameterByName = function(name, url) {
        if(!url) {
            url = window.location.href;
        }
        name = name.replace(/[\[\]]/g, "\\$&");
        var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"), results = regex.exec(url);
        if(!results || !results[2]) {
            return '';
            //get from cookie 
        } else {
            return decodeURIComponent(results[2].replace(/\+/g, " "));
        }
        
    };
};

BPTracking.track();