localStorage (de)serialization via loads and dumps prototype functions

gistfile1.js

Object.getPrototypeOf(localStorage).dumps = function() {
    return JSON.stringify(this);
};
Object.getPrototypeOf(localStorage).loads = function(str, clear) {
	if (clear == true)
		this.clear();
	var doc = JSON.parse(str);
	for (var i = 0; i < Object.keys(doc).length; i++) {
		key = Object.keys(doc)[i];
		this.setItem(key, doc[key]);
	};
};

/* Usage:
 * var str = localStorage.dumps()
 * localStorage.loads(str);
 * **WARNING** If you add the 'clear' argument, the whole localStorage keys will be flushed away
 * localStorage.loads(str, true);
 */