/*
 * Facebox ( for jQuery)
 * version: 1.2 ( 05/05/2008)
 * @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')
 *	jQuery.facebox( 'some html', 'my-groovy-style')
 *
 *  The above will open a facebox with "some html" as the content.
 *	
 *	jQuery.facebox( function( $) { 
 *		$.get( 'blah.html', function( data) { $.facebox( data) })
 *	})
 *
 *  The above will show a loading screen before the passed function is called,
 *  allowing for a better ajaxy experience.
 *
 *  The facebox function can also display an ajax page, an image, or the contents of a div:
 *  
 *	jQuery.facebox( { ajax: 'remote.html' })
 *	jQuery.facebox( { ajax: 'remote.html' }, 'my-groovy-style')
 *	jQuery.facebox( { image: 'stairs.jpg' })
 *	jQuery.facebox( { image: 'stairs.jpg' }, 'my-groovy-style')
 *	jQuery.facebox( { div: '#box' })
 *	jQuery.facebox({ div: '#box' }, 'my-groovy-style')
 *
 *  Want to close the facebox?  Trigger the 'close.facebox' document event:
 *
 *	jQuery(document).trigger('close.facebox')
 *
 *  Facebox also has a bunch of other hooks:
 *
 *	loading.facebox
 *	beforeReveal.facebox
 *	reveal.facebox (aliased as 'afterReveal.facebox')
 *	init.facebox
 *
 *  Simply bind a function to any of these hooks:
 *
 *   $(document).bind('reveal.facebox', function() { ...stuff to do after the facebox and contents are revealed... })
 *
 */
( function( $ ) {
	$.facebox = function( data, klass ) {
   $.facebox.loading()
	
	if(data.ajax) fillFaceboxFromAjax(data.ajax, klass)
	else if(data.image) fillFaceboxFromImage(data.image, klass)
	else if(data.div) fillFaceboxFromHref(data.div, klass)
	else if($.isFunction(data)) data.call($)
	else $.facebox.reveal(data, klass)
	}
	
	$.extend( $.facebox, {
		settings: {
		opacity			: 0.5,
		overlay			: true,
		loadingImage	: 'images/site_images/loading.gif',
		closeImage		: 'images/facebox/closelabel.gif',
		imageTypes		: [ 'png', 'jpg', 'jpeg', 'gif' ],
		faceboxHtml		: '\
	<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"> \
									<img src="images/facebox/closelabel.gif" title="close" class="close_image" /> \
								</a> \
							</div> \
						</td> \
						<td class="b"/> \
					</tr> \
				<tr> \
					<td class="bl"/><td class="b"/><td class="br"/> \
				</tr> \
			</tbody> \
		</table> \
	</div> \
</div>'
	},
	
	loading: function() {
		init()
		if( $( '#facebox .loading' ).length == 1 ) return true
			showOverlay()
			$( '#facebox .content' ).empty()
			$( '#facebox .body' ).children().hide().end().
			append( '<div class="loading"><img src="'+$.facebox.settings.loadingImage+'"/></div>' )
			$( '#facebox' ).css({
			top:	getPageScroll()[1] + ( getPageHeight() / 20 ),
			left:	( $( window ).width() - 660 ) / 2 
		} ).show()

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

	reveal: function( data, klass ) {
		$( document ).trigger( 'beforeReveal.facebox' )
		if( klass ) $( '#facebox .content' ).addClass( klass )
			$( '#facebox .content' ).append( data )
			$( '#facebox .loading' ).remove()
			$( '#facebox .body' ).children().fadeIn( 'normal' )
			$( '#facebox' ).css( 'left', $( window ).width() / 2 - ( $( '#facebox table' ).width() / 2 ) )
			$( document ).trigger( 'reveal.facebox' ).trigger( 'afterReveal.facebox' )
		},
	
		close: function() {
			$( document ).trigger( 'close.facebox' )
			return false
		}
	}
)
	
	/*
	* Public, $.fn methods
	*/
	
	$.fn.facebox = function( settings ) {
		init( settings )
		
		function clickHandler() {
			$.facebox.loading( true )
			// support for rel="facebox.inline_popup" syntax, to add a class
			// also supports deprecated "facebox[.inline_popup]" syntax
			var klass = this.rel.match( /facebox\[?\.(\w+)\]?/ )
			if( klass ) klass = klass[1]
			// ADDING ?POPUP BREAKS IMAGES!
			fillFaceboxFromHref( this.href, klass )
			return false
		}
	return this.bind( 'click.facebox', clickHandler )
	}
	
	/*
	* Private methods
	*/
	
	// called one time to setup facebox on this page
	function init( settings ) {
		if($.facebox.settings.inited) return true
		else $.facebox.settings.inited = true
		
		$( document ).trigger( 'init.facebox' )
		makeCompatible()
		
		var imageTypes = $.facebox.settings.imageTypes.join( '|' )
		$.facebox.settings.imageTypesRegexp = new RegExp( '\.(' + imageTypes + ')$', 'i' )
		
		if( settings ) $.extend( $.facebox.settings, settings )
			$( 'body' ).append( $.facebox.settings.faceboxHtml )
		
		var preload = [ new Image(), new Image() ]
		preload[0].src = $.facebox.settings.closeImage
		preload[1].src = $.facebox.settings.loadingImage
		
		$( '#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.closeImage )
}
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	// getPageScroll() by quirksmode.com
	function getPageScroll() {
	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) 
	}
	
	// Adapted from getPageSize() by quirksmode.com
	function getPageHeight() {
	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
	}
	
	// Backwards compatibility
	function makeCompatible() {
	var $s = $.facebox.settings
	
	$s.loadingImage = $s.loading_image || $s.loadingImage
	$s.closeImage = $s.close_image || $s.closeImage
	$s.imageTypes = $s.image_types || $s.imageTypes
	$s.faceboxHtml = $s.facebox_html || $s.faceboxHtml
	}
	
	// Figures out what you want to display and displays it
	// formats are:
	//	 div: #id
	//   image: blah.extension
	//	ajax: anything else
	function fillFaceboxFromHref(href, klass) {
	// div
	if(href.match(/#/)) {
		var url	= window.location.href.split('#')[0]
		var target = href.replace(url + '?view=popup','')
		$.facebox.reveal($(target).show().replaceWith("<div id='facebox_moved'></div>"), klass)
	
	// image
	} else if(href.match($.facebox.settings.imageTypesRegexp)) {
		fillFaceboxFromImage(href, klass)
	// ajax
	} else {
		fillFaceboxFromAjax(href + '?view=popup', klass)
	}
	}
	
	function fillFaceboxFromImage(href, klass) {
	var image = new Image()
	image.onload = function() {
		$.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass)
	}
	image.src = href
	}
	
	function fillFaceboxFromAjax(href, klass) {
	$.get(href, function(data) { $.facebox.reveal(data, klass) })
	}
	
	function skipOverlay() {
	return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null 
	}
	
	function showOverlay() {
	if(skipOverlay()) return
	
	if($('#facebox_overlay').length == 0) 
		$("body").append('<div id="facebox_overlay" class="facebox_hide"></div>')
	
	$('#facebox_overlay').hide().addClass("facebox_overlayBG")
		.css('opacity', $.facebox.settings.opacity)
		.click(function() { $(document).trigger('close.facebox') })
		.fadeIn(200)
	return false
	}
	
	function hideOverlay() {
	if(skipOverlay()) return
	
	$('#facebox_overlay').fadeOut(200, function(){
		$("#facebox_overlay").removeClass("facebox_overlayBG")
		$("#facebox_overlay").addClass("facebox_hide") 
		$("#facebox_overlay").remove()
	})
	
	return false
	}
	
	/*
	* Bindings
	*/
	
	$(document).bind('close.facebox', function() {
	$(document).unbind('keydown.facebox')
	$('#facebox').fadeOut(function() {
		if($('#facebox_moved').length == 0) $('#facebox .content').removeClass().addClass('content')
		else $('#facebox_moved').replaceWith($('#facebox .content').children().hide())
		hideOverlay()
		$('#facebox .loading').remove()
	})
	})
	
	})(jQuery);