/*
 * Facebox (for jQuery)
 * version: 1.1 (03/01/2008)
 * @requires jQuery v1.2 or later
 *
 * Examples at http://famspam.com/facebox/
 *
 * Licensed under the MIT:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Copyright 2007, 2008 Chris Wanstrath [ chris@ozmm.org ]
 *
 * Usage:
 *
 *  jQuery(document).ready(function() {
 *    jQuery('a[rel*=facebox]').facebox()
 *  })
 *
 *  <a href="#terms" rel="facebox">Terms</a>
 *    Loads the #terms div in the box
 *
 *  <a href="terms.html" rel="facebox">Terms</a>
 *    Loads the terms.html page in the box
 *
 *  <a href="terms.png" rel="facebox">Terms</a>
 *    Loads the terms.png image in the box
 *
 *
 *  You can also use it programmatically:
 *
 *    jQuery.facebox('some html')
 *
 *  This will open a facebox with "some html" as the content.
 *
 *    jQuery.facebox(function() { ajaxes })
 *
 *  This will show a loading screen before the passed function is called,
 *  allowing for a better ajax experience.
 *
 */
(function($) {
	$.facebox = function(data, klass) {
		$.facebox.init()
		$.facebox.loading()
		$.isFunction(data) ? data.call($) : $.facebox.reveal(data, klass)
	}

	$.facebox.settings = {
		loading_image : '/images/facebox/loading.gif',
		close_image   : '/images/facebox/closelabel.gif',
		image_types   : [ 'png', 'jpg', 'jpeg', 'gif' ],
		facebox_html  : '\
		<div id="facebox" style="display:none;"> \
			<div class="popup"> \
				<table> \
					<tbody> \
						<tr> \
							<td class="tl"/><td class="b"/><td class="tr"/> \
						</tr> \
						<tr> \
							<td class="b"/> \
							<td class="body"> \
								<div class="content"> \
								</div> \
								<div class="footer"> \
									<a href="#" class="close">Close</a> \
								</div> \
							</td> \
							<td class="b"/> \
						</tr> \
						<tr> \
							<td class="bl"/><td class="b"/><td class="br"/> \
						</tr> \
					</tbody> \
				</table> \
			</div> \
		</div>'
	}

	$.facebox.loading = function() {
		if ($('#facebox .loading').length == 1) return true

		$('#facebox .content').empty()
		$('#facebox .body').children().hide().end().
			append('<div class="loading"><img src="'+$.facebox.settings.loading_image+'"/></div>')

			var pageScroll = $.facebox.getPageScroll()
			$('#facebox').css({
				top:	pageScroll[1] + ($.facebox.getPageHeight() / 10),
				left:	pageScroll[0]
			}).show()

			$(document).bind('keydown.facebox', function(e) {
			if (e.keyCode == 27) $.facebox.close()
		})
	}

	$.facebox.reveal = function(data, klass) {
		if (klass) $('#facebox .content').addClass(klass)
		$('#facebox .content').append(data)
		$('#facebox .loading').remove()
		$('#facebox .body').children().fadeIn('normal')
	}

	$.facebox.close = function() {
		$(document).trigger('close.facebox')
		return false
	}

	$(document).bind('close.facebox', function() {
		$(document).unbind('keydown.facebox')
		$('#facebox').fadeOut(function() {
			$('#facebox .content').removeClass().addClass('content')
		})
	})

	$.fn.facebox = function(settings) {
		$.facebox.init(settings)
		function click_handler() {
			$.facebox.loading(true);
			$.get(this.href  + '?jquery=1', function(data) {
				$.facebox.reveal(data, '');
				setTimeout("$('input:first').focus();", 500);
				$('input:first').focus( function() { $(this).select(); });
			})
			return false
		}
		this.click(click_handler)
		return this
	}

	$.facebox.init = function(settings) {
		if ($.facebox.settings.inited) {
			return true
		} else {
			$.facebox.settings.inited = true
		}

		if (settings) $.extend($.facebox.settings, settings)
		$('body').append($.facebox.settings.facebox_html)

		var preload = [ new Image(), new Image() ]
		preload[0].src = $.facebox.settings.close_image
		preload[1].src = $.facebox.settings.loading_image

		$('#facebox').find('.b:first, .bl, .br, .tl, .tr').each(function() {
			preload.push(new Image())
			preload.slice(-1).src = $(this).css('background-image').replace(/url\((.+)\)/, '$1')
		})

		$('#facebox .close').click($.facebox.close)
		$('#facebox .close_image').attr('src', $.facebox.settings.close_image)
	}

	// getPageScroll() by quirksmode.com
	$.facebox.getPageScroll = function() {
		var xScroll, yScroll;
		if (self.pageYOffset) {
			yScroll = self.pageYOffset;
			xScroll = self.pageXOffset;
		} else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
			yScroll = document.documentElement.scrollTop;
			xScroll = document.documentElement.scrollLeft;
		} else if (document.body) {// all other Explorers
			yScroll = document.body.scrollTop;
			xScroll = document.body.scrollLeft;
		}
		return new Array(xScroll,yScroll)
	}

	// adapter from getPageSize() by quirksmode.com
	$.facebox.getPageHeight = function() {
		var windowHeight
		if (self.innerHeight) {	// all except Explorer
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) { // other Explorers
			windowHeight = document.body.clientHeight;
		}
		return windowHeight
	}
})(jQuery);