Best practice for sammy js

[El-Mahbub]

How is the best practice with sammy js ?
I have this codes, what is it best practice ? But i think it is not a best practice.
My codes :
`
var app, app_name, base_url, url = [], cdn, websocket;
var body, navbar, container_content, left_side, main_side, main_content, other_side, right_side, footer;
var uid, user_id, name;

// Config
var config = {
host : 'http://localhost:8080/xampp/MyApp/',
app_name : window.location.pathname.split('/').length > 1 ? window.location.pathname.split('/')[2] : window.location.pathname.split('/')[1],
target : 'body'
}

// Autoload
var autoload = {
base_url: config.host,
error_404: ''
};

// Url's
var url = {
login: '#/',
profile: 'profile/index/',
kronologi: 'profile/kronologi/',
status_profile: 'profile/status/',
global: 'page/global_page',
status_global: 'page/status_global/',
recomended: 'page/all_recomended'
}

// System
Object.keys(url).forEach(function (key) {
url[key] = config.host + url[key];
});

base_url = autoload.base_url;
app_name = config.app_name;
name = $('#nama-profile').children().text();

// Controller
var routes = $.sammy(function(){
app = this;
this.element_selector = config.target;
this.run_interval_every = 60000;
this.get('#/', function (context) {

});
this.get('#/login', function (context) {
	app.redirect('#/');
});
this.get('#/signup', function (context) {
	
});
this.get('#/profile/index/:username', function (context) {
	var params = this.params['username'];
	profile(context.$element(),url.profile+params,params);
});
this.get('#/global/', function (context) {
	render(context.$element(),url.global,'status_global');
});
this.get('#/gallery/:username', function (context) {
	
});;
this.get('#/adsennse/:username', function (context) {
	
});
this.get('#/report/:id', function (context) {
	
});
this.get('#/help/', function (context) {
	
});
this.get('#/feedback/:id', function (context) {
	
});
this.get('#/about/', function (context) {
	
});
this.get('#/log_out/:id', function (context) {
	
});

}).run('#/');

// Views

// Profile
function profile(el,controller,name) {
render(el,controller,'kronologi');
change_title(str_replace(app_name,'/','')+' - '+str_replace(name,'',' '));
$(document).find('.title-user').html('

Profil '+str_replace(name,'',' ')+'

');

}
function kronologi(el,controller,user_id) {
render(el,controller,'status_profile');
}

// Global

function global(el,controller) {
change_title(str_replace(app_name,'/','')+' - '+'Global');
$(document).find('.title-user').html('

Global page

');
render(el,controller,'');
}

// Helpers

function render(params1,params2,params3) {
$.ajax({
url: params2,
type: 'post',
beforeSend:function (argument) {

	},
	error:function (data) {
		error_load($(params1),data);	
	},
	success: function (data) {
		$(params1).html(data);
		navbar = $('nav');
		container_content = $('#container');
		left_side = $('#menu_user');
		main_side = $('.profile_content');
		main_content = $('.main_profile');
		content_status = $('#status-profile');
		other_side = $('.statistic_user');
		right_side = $('#online_side');
		footer = $('footer');
		uid = $('.title-user').attr('ux');
		user_id = $('.title-user').attr('ui');
		uid === '' ? window.location.href = url.login : null;
		if(params3 !== ''){
			switch (params3) {
				case 'kronologi':
					kronologi(main_content,url.kronologi+user_id,user_id);
					break;
				case 'status_profile':
					loadStatus(content_status,url.status_profile+user_id+'/');
					status();
					break;
				case 'status_global':
					global(other_side,url.recomended);
					loadStatus(main_content,url.status_global+uid+'/');
					break;
			}
		}
		else { null; }
		}
});
return true;

}
function site_url(args){
return config.host + args;
}
function loadStatus(el,urlTarget) {
$(el).loadStatus({
loading : "",
no_news : "",
error_text : "Terjadi kesalahan memuat konten",
url : urlTarget,
start : 1
});
}
function change_title(argument) {
$(document).find('title').text(argument);
}
function str_replace(args,haystack,needle) {
return args.replace(haystack,needle);
}`

Hope you can give me the best practice in documentation, because i know about jquery but just litle for sammy :-)