sesssionStorage.setObj(1,{date:Date.now(),action:'save firstObject'});
sesssionStorage.setObj(2,{date:Date.now(),action:'save 2nd object'});
//Query first object
sesssionStorage.getObj(1)
//Retrieve date created of 2nd object
new Date(sesssionStorage.getObj(1).date)
Storage.prototype.setObj = function(key, obj) {
return this.setItem(key, JSON.stringify(obj))
};
Storage.prototype.getObj = function(key) {
return JSON.parse(this.getItem(key))
};