Try
$(document).ready(function () {
function section(checkbox, section, cookieName, defaultStatus) {
var cookie = $.cookie(cookieName);
var $chk = $(checkbox).prop('checked', cookie == undefined ? defaultStatus : cookie == '1' ? true : false);
$chk.change(function () {
$(section).toggle(!this.checked);
$.cookie(cookieName, this.checked ? 1 : 0);
}).change();
}
section('.Checkbox1', '#displaySection1', 'cookie1', false);
section('.Checkbox2', '#displaySection2', 'cookie2', true);
section('.Checkbox3', '#displaySection3', 'cookie3', false);
section('.Checkbox4', '#displaySection4', 'cookie4', true);
}); //end function
Demo: Fiddle