Userscript for customizing Google navbar

customgoogle.user.js

// ==UserScript==
// @name        Custom Google Menu 2
// @namespace   http://witmeyer.me
// @description Custom Google Menu 2
// @include     /^https?://www\.google\.(com|fr)//
// @grant       none
// @version     1
// ==/UserScript==
(function() {
	var settings = [
		{ label: 'Adwords', url: 'https://adwords.google.com/um/StartNewLogin?sourceid=awo&subid=ww-fr-et-newAC1' },
		{ label: 'Analytics', url: 'https://www.google.com/analytics/home/?hl=fr&authuser=0'},
		{ label: 'TagManager', url: 'https://www.google.com/tagmanager'},
		{ label: 'Google s\'engage', url: 'https://www.engageforagencies.com/fr/tableau-de-bord/'},
		{ label: 'GWT', url: 'https://www.google.com/webmasters/tools/home?hl=fr'},
		
		
	];
	var execute = function( settings ){
		
		// ATTRIBUTES
		var menuContainer,
			createMenu;
			
		// INITIALISATION
		menuContainer = document.getElementById('gbzc');
		createMenu = function( menu ) {
			var createLink = function( link ) {
				return '<li class="gbt"><a href="'+link.url+'" class="gbzt"><span class="gbtb2"></span><span class="gbts">'+link.label+'</span></a></li>';
			}
			var str = '';
			for ( var i=0, j=menu.length; i<j; i++ ) {
				str += createLink( menu[i] );
			}
			return str;
		}
		
		// CONSTRUCTOR
		if ( menuContainer ) {
			menuContainer.innerHTML += createMenu( settings );
		}
	}
	var script = document.createElement("script");
	script.innerHTML = '(' + execute.toString() + ')( ' + JSON.stringify( settings ) + ');';
	document.head.appendChild(script);
})();