/*
 * Apache License
 * Version 2.0, January 2004
 * http://www.apache.org/licenses/
 *
 * Copyright 1996-2008 by Sven Homburg
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */

var T5COnEvent = Class.create();
T5COnEvent.prototype = {
	initialize: function(eventName, elementId, stop, requestUrl, onCompleteCallback)
	{
		if (!$(elementId))
			throw(elementId + " doesn't exist!");

		this.element = $(elementId);
		this.stop = stop;

		this.onCompleteCallback = null

		if (onCompleteCallback.length > 0)
			this.onCompleteCallback = onCompleteCallback;

		this.requestUrl = requestUrl;

		Event.observe(this.element, eventName, this.reflectOnEvent.bind(this), false);
	},
	reflectOnEvent: function(myEvent)
	{
		var fieldValue;
		var formElement = this.element.form;

		if (this.stop) Event.stop(myEvent);

		if (typeof formElement != 'undefined')
			fieldValue = $F(this.element);

		new Ajax.Request(this.requestUrl, {
			method: 'post',
			parameters:  {"value" : fieldValue},
			onFailure: function(t)
			{
				alert(t.responseText);
			},
			onException: function(t, exception)
			{
				alert(exception);
			},
			onSuccess: function(t)
			{
				if (this.onCompleteCallback != null)
					eval(this.onCompleteCallback + "('" + t.responseText + "')");
			}.bind(this)
		});
	}
}


var ButtonEvent = Class.create();

ButtonEvent.prototype =
{
	initialize: function(elementId, requestUrl)
	{
		if (!$(elementId))
			throw(elementId + " doesn't exist!");

		this.element = $(elementId);
		this.requestUrl = requestUrl;

		Event.observe(this.element, "click",
				this.fireEvent.bind(this, this.element),
				false);
	},
	fireEvent: function(myEvent)
	{
		document.location = this.requestUrl;
		return false;
	}
}