code: function(key, value){
  		var ls = this._local.localStorage; // null, sessionStorage, or localStorage
  
  		if( value === undefined ) {
  			return ls ? ls.getItem(key) : $.cookie(key);
  		} else if ( value === null ) {
  			if( ls ) {
  				ls.removeItem(key);
  			} else {
  				$.removeCookie(key);
  			}
  		} else {
  			if( ls ) {
  				ls.setItem(key, value);
  			} else {
  				$.cookie(key, value, this.options.persist.cookie);
  			}
  		}
  	}
docs: /* Generic read/write string data to cookie, sessionStorage or localStorage.