cookies.js

// Reduced version of Mozilla's cookie framework
// https://developer.mozilla.org/en-US/docs/Web/API/Document/cookie/Simple_document.cookie_framework
var docCookies = {
	getItem: function (sKey) {
	  if (!sKey) { return null; }
	  return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
	},
	setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) {
	  if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
	  var sExpires = "";
	  if (vEnd) {
		switch (vEnd.constructor) {
		  case Number:
			sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
			/*
			Note: Despite officially defined in RFC 6265, the use of `max-age` is not compatible with any
			version of Internet Explorer, Edge and some mobile browsers. Therefore passing a number to
			the end parameter might not work as expected. A possible solution might be to convert the the
			relative time to an absolute time. For instance, replacing the previous line with:
			*/
			/*
			sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; expires=" + (new Date(vEnd * 1e3 + Date.now())).toUTCString();
			*/
			break;
		  case String:
			sExpires = "; expires=" + vEnd;
			break;
		  case Date:
			sExpires = "; expires=" + vEnd.toUTCString();
			break;
		}
	  }
	  document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
	  return true;
	}
  };