/*
 * 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.openinstance.org/licenses/mit-license.php
 *
 * Copyright 2007, 2008 Chris Wanstrath [ chris@ozmm.org ]
 *
*/
(function($) {
  $.facebox = function(data, klass, settings) {
		$.facebox.settings = $.extend($.evalJSON($.toJSON($.facebox.defaultSettings)), settings);
    $.facebox.loading();
    if (data.ajax) fillFaceboxFromAjax(data.ajax, klass);
    else if (data.image) fillFaceboxFromImage(data.image);
    else if (data.div) fillFaceboxFromHref(data.div);
    else if ($.isFunction(data)) data.call($);
    else $.facebox.reveal(data, klass);
  }
	$.extend($.facebox, {
    defaultSettings: {
      opacity      : 0.18,
      overlay      : true,
      width        : 370,
      closeImage   : '/images/blank.png',
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
      faceboxHtml  : '<div id="facebox" style="display:none;"><div class="popup rel"><table><tbody><tr><td class="tl"/><td class="b"/><td class="tr"/></tr><tr><td class="b"/><td class="body"><div class="content"></div></td><td class="b"/></tr><tr><td class="bl"/><td class="b"/><td class="br"/></tr></tbody></table><a href="#" class="close"><img src="/images/blank.png" title="close" class="close_image" /></a></div></div>'
    },
    to : false,
    loading: function() {
      init();
      if ($('#facebox .fbloading').length == 1) return true;
      showOverlay();
      clearTimeout($.facebox.to)
      $('#facebox .content').empty();
      $('#facebox .body').css({width: $.facebox.settings.width}).children().hide().end().append('<div class="fbloading">&nbsp;</div>');
      var left = (($(window).width() - $.facebox.settings.width) / 2);
      $('#facebox').css({top: getPageScroll()[1] + (getPageHeight() / 10), left: left}).show();
      $(document).bind('keydown.facebox', function(e) {if (e.keyCode == 27) $.facebox.close(); return true;});
      $(document).trigger('loading.facebox');
      $.facebox.settings.open = true;
    },
    reveal: function(data, klass) {
      /* Redirect if data is just a link. */
      if (data.match(/^(http|https)(\:\/\/)([A-Z0-9\-\.]+)/i) && !data.match(/\s/)) {if (data == location.href) {location.reload(true);} else {location.href = data;} return;}

      $(document).trigger('beforeReveal.facebox');
      if (klass) $('#facebox .content').addClass(klass);
      $('#facebox .content').html(data);
      $('#facebox .fbloading').remove();
      $('#facebox .body').css({width: $.facebox.settings.width}).children().fadeIn('normal');
      var left = (($(window).width() - $('#facebox .body').width()) / 2);
      $('#facebox').css({'left': left});
      $(document).trigger('reveal.facebox').trigger('afterReveal.facebox');
      $.facebox.settings.open = true;
    },
    error : function(str) {
      if (!str || str == '') str = 'Sorry, but this information could not be loaded.';
      $.facebox.reveal('<div class="suggest error"><h3>'+ str +'</h3><p><a href="#" class="button large ghost" onclick="javascript: $.facebox.close(); return false;">OK</a></p></div>');
    },
    close: function() {clearTimeout($.facebox.to); $(document).trigger('close.facebox'); return false;}
  });
  $.fn.facebox = function(settings) {
    init(settings);
    function clickHandler() {
      $.facebox.loading(true);
      var klass = this.rel.match(/facebox\[?\.(\w+)\]?/);
      if (klass) klass = klass[1];
      fillFaceboxFromHref(this.href, klass);
      return false;
    }
    return this.click(clickHandler);
  }
  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;

    $('#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);
  }
  function getPageScroll() {
    var yScroll = ((self.pageYOffset) ? self.pageYOffset : ((document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : ((document.body) ? document.body.scrollTop : false)));
    var xScroll = ((self.pageYOffset) ? self.pageXOffset : ((document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollLeft : ((document.body) ? document.body.scrollLeft : false)));
    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.closeImage = $s.close_image || $s.closeImage;
    $s.imageTypes = $s.image_types || $s.imageTypes;
    $s.faceboxHtml = $s.facebox_html || $s.faceboxHtml;
  }
  function fillFaceboxFromHref(href, klass) {
    // div
    if (href.match(/#/)) {
      var url = window.location.href.split('#')[0];
      var target = href.replace(url,'');
      $.facebox.reveal($(target).clone().show(), klass);
    // image
    } else if (href.match($.facebox.settings.imageTypesRegexp)) {
      fillFaceboxFromImage(href, klass);
    // ajax
    } else {
      fillFaceboxFromAjax(href, klass);
    }
  }
  function fillFaceboxFromImage(href, klass) {
    var image = new Image();
    image.onload = function() {$.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', klass);}
    image.src = href;
  }
  function fillFaceboxFromAjax(href, klass) {
    $.ajax({url:href, type:'get', success:function(request, status) {$.facebox.reveal(request, klass);}, error:function() {$.facebox.error('Sorry, but this information could not be loaded.');}});
  }
  function skipOverlay() {
    return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null;
  }
  function showOverlay() {
    if (skipOverlay()) return;
    if ($('facebox_overlay').size() < 1) $("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").addClass("facebox_hide").remove();});
    return false;
  }
  $(document).bind('close.facebox', function() {
    $(document).unbind('keydown.facebox');
    $(document).trigger('beforeClose.facebox').unbind('beforeClose.facebox');
    $('#facebox').fadeOut(function() {$('#facebox .content').removeClass().addClass('content').html(''); hideOverlay(); $('#facebox .fbloading').remove(); $.facebox.settings.open = false;});
  });
})(jQuery);