localStorageOfForm.js

// Save all data, on some kind of event

localStorage.setItem("doesHaveData", "yeahBaby");

var data = $("#contest-vote").serializeArray();
jQuery.each(data, function(i, obj) {
	localStorage.setItem(obj.name, obj.value);
});


// Get all data back, test on page load

if (localStorage.getItem("doesHaveData")) {	
	var data = $("#contest-vote").serializeArray();
	jQuery.each(data, function(i, obj) {
		$("[name='"+ obj.name +"']").val(localStorage.getItem(obj.name));
	});
}