Javascript Prototype: En example of periodical event broadcaster with ajax

The class below executes script.php every 60 seconds. After successful execution, it throws an event "jobs:updated" with JSON data returned from script.php.

	var NewBroadcaster = Class.create({
	initialize: function(options) {
	this.options = Object.extend({
	refreshEvery: 60 // in seconds
	}, options || {});
	this.executer = new PeriodicalExecuter(this.update.bind(this),
	this.options.refreshEvery
	);
	this.update();
	},
	update: function() {
	this.request = new Ajax.Request("script.php", {
	onSuccess: this.success.bind(this)
	});
	},
	success: function(request) {
	document.fire("jobs:updated", request.responseJSON);
	}
	});

view raw gistfile1.js hosted with ❤ by GitHub