//######
//## This work is licensed under the Creative Commons Attribution-Share Alike 3.0 
//## United States License. To view a copy of this license, 
//## visit http://creativecommons.org/licenses/by-sa/3.0/us/ or send a letter 
//## to Creative Commons, 171 Second Street, Suite 300, San Francisco, California, 94105, USA.
//######
(function($){
$.fn.idleTimeout = function(options) {

	var defaults = {
		inactivity:   1200000, 		// time (ms) before user is considered inactive
		sessionAlive: 1200000, 		// frequency (ms) to hit aliveUrl (if non-null)
		aliveUrl: '/services/ping',	// URL that keeps session alive
		redirectUrl: null,			// URL to land after forced logout
		logoutUrl: null,		 	// async session destroy URL called before redirect to redirectUrl
		activityReset: true 		// if true, reset timer on clicks & mouse movement
	}

    var opts = $.extend(defaults, options);
    var liveTimeout, sessionTimeout;

	var startLiveTimeout = function() {
    	stopLiveTimeout();
		clearTimeout(liveTimeout);
		liveTimeout = setTimeout(onInactive, opts.inactivity);
	}

	var stopLiveTimeout = function() {
		clearTimeout(liveTimeout);
		clearTimeout(sessionTimeout);
	}

    var onInactive = function() {
		if (opts.sessionAlive) {
			clearTimeout(sessionTimeout);
			sessionTimeout = setTimeout(keepSession, opts.sessionAlive);
		}
    }

	var keepSession = function() {
		$.get(opts.aliveUrl);
		clearTimeout(sessionTimeout);
		sessionTimeout = setTimeout(keepSession, opts.sessionAlive);
	}

    // export the plug-in
	return this.each(function() {
		obj = $(this);
		startLiveTimeout();
		if (opts.activityReset) {
			$(document).bind('click', startLiveTimeout);
			$(document).bind('mousemove', startLiveTimeout);
		}
	});
};
})(jQuery);
.