track the users history

main.js

(function(window){

// add ability to save an object
    if(localStorage){
	
	Storage.prototype.setObj = function (key, obj) {
	    return this.setItem(key, JSON.stringify(obj));
	}
	Storage.prototype.getObj = function(key) {
	    return JSON.parse(this.getItem(key));
	}
    }

    var insertActualPage = function () {
	var actualUrl = document.URL,
	    allUrl = [],
	    firstAndLastUrls = [];

	if(localStorage.getObj('urls'))
	    allUrl = localStorage.getObj('urls', allUrl);

	allUrl.push(actualUrl);
	localStorage.setObj('urls', allUrl);

	return allUrl;
}
}(window));