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/* SpryValidationCheckbox.js - Revision: Spry Preview Release 1.4 */

// Copyright (c) 2006. Adobe Systems Incorporated.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//   * Neither the name of Adobe Systems Incorporated nor the names of its
//     contributors may be used to endorse or promote products derived from this
//     software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

var Spry;
if (!Spry) Spry = {};
if (!Spry.Widget) Spry.Widget = {};

Spry.Widget.ValidationCheckbox = function(element, opts)
{
	this.init(element);
	
	Spry.Widget.Utils.setOptions(this, opts);

	// set validateOn flags
	var validateOn = ['submit'].concat(this.validateOn || []);
	validateOn = validateOn.join(",");
	this.validateOn = 0 | (validateOn.indexOf('submit') != -1 ? Spry.Widget.ValidationCheckbox.ONSUBMIT : 0);
	this.validateOn = this.validateOn | (validateOn.indexOf('blur') != -1 ? Spry.Widget.ValidationCheckbox.ONBLUR : 0);
	this.validateOn = this.validateOn | (validateOn.indexOf('change') != -1 ? Spry.Widget.ValidationCheckbox.ONCHANGE : 0);
	
	// sanity checks
	if (!isNaN(this.minSelections)) {
		this.minSelections = (this.minSelections > 0)? parseInt(this.minSelections, 10): null;
	}
	if (!isNaN(this.maxSelections)) {
		this.maxSelections = (this.maxSelections > 0)? parseInt(this.maxSelections, 10): null;
	}

	// Unfortunately in some browsers like Safari, the Stylesheets our
	// page depends on may not have been loaded at the time we are called.
	// This means we have to defer attaching our behaviors until after the
	// onload event fires, since some of our behaviors rely on dimensions
	// specified in the CSS.

	if (Spry.Widget.ValidationCheckbox.onloadDidFire)
		this.attachBehaviors();
	else 
		Spry.Widget.ValidationCheckbox.loadQueue.push(this);
};

Spry.Widget.ValidationCheckbox.ONCHANGE = 1;
Spry.Widget.ValidationCheckbox.ONBLUR = 2;
Spry.Widget.ValidationCheckbox.ONSUBMIT = 4;

Spry.Widget.ValidationCheckbox.prototype.init = function(element)
{
	this.element = this.getElement(element);
	this.checkboxElements = null;
	this.form = null;
	this.event_handlers = [];
	
	 // this.element can be either the container (<span>)
	 // or the <input type="checkbox"> element, when no error messages are used.
	this.hasFocus = false;
	this.requiredClass = "checkboxRequiredState";
	this.minSelectionsClass = "checkboxMinSelectionsState";
	this.maxSelectionsClass = "checkboxMaxSelectionsState";
	this.focusClass = "checkboxFocusState";
	this.validClass = "checkboxValidState";
	
	this.isRequired = true;
	
	this.minSelections = null;
	this.maxSelections = null;
	
	this.validateOn = ["submit"];  // change, submit (blur ?)
};

Spry.Widget.ValidationCheckbox.prototype.destroy = function() {
	for (var i=0; i<this.event_handlers.length; i++) {
		Spry.Widget.Utils.removeEventListener(this.event_handlers[i][0], this.event_handlers[i][1], this.event_handlers[i][2], false);
	}
	try { delete this.element; } catch(err) {}
	for(var i=0; i<this.checkboxElements.length; i++) {
		try { delete this.checkboxElements[i];} catch(err) {}
	}
	try { delete this.checkboxElements; } catch(err) {}
	try { delete this.form; } catch(err) {}
	try { delete this.event_handlers; } catch(err) {}

	var q = Spry.Widget.Form.onSubmitWidgetQueue;
	var qlen = q.length;
	for (var i = 0; i < qlen; i++) {
		if (q[i] == this) {
			q.splice(i, 1);