/*
 * 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')
 *
 *  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 or image:
 *  
 *    jQuery.facebox({ ajax: 'remote.html' })
 *    jQuery.facebox({ image: 'dude.jpg' })
 *
 *  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, title, id, klass) {
  	if (id == undefined) {
		ts = new Date()
		ts = ts.getTime()
		id = "facebox"+ts
	}
	$.facebox.settings.id = id
   $.facebox.loading()

    if (data.ajax) fillFaceboxFromAjax(data.ajax, title, id, klass)
	else if (data.iframe) fillFaceboxFromIFrame(data.iframe, title, id, klass); 
	else if (data.image) fillFaceboxFromImage(data.image, title, id, klass)
    else if (data.div) fillFaceboxFromHref(data.div, title, id, klass)
    else if ($.isFunction(data)) data.call($)
    else $.facebox.reveal(data, title, id, klass)
	
  }

  /*
   * Public, $.facebox methods
   */

  $.extend($.facebox, {
    settings: {
      opacity      : 0,
      overlay      : true,
      loadingImage : '/facebox/loader1.gif',
      closeImage   : '/facebox/closelabel.gif',
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
		id		   : 'defaultLayer',
      faceboxHtml  : '\
    <div class="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="pop_footer"> \
              <div class="pop_header"> \
                </div> \
                  <a href="#" class="close"> \
                    <img src="/facebox/closelabel.gif" title="close" class="close_image" /> \
                  </a> \
                </div> \
                <div class="content"> \
                </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.settings.id+' .loading').length == 1) return true
      showOverlay()

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

		var zi = 100 + ($(".facebox").length * 2);

		$('#'+$.facebox.settings.id+'').css({
        top:	getPageScroll()[1] + (getPageHeight() / 10),
        left:	($(window).width() - $('#'+$.facebox.settings.id+'').width()) / 2,
		  'z-index': zi
      }).show()

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

    reveal: function(data, title, id, klass) {
      $(document).trigger('beforeReveal.facebox')
      if (klass) $('#'+$.facebox.settings.id+' .content').addClass(klass)
      $('#'+$.facebox.settings.id+' .content').append(data)
      $('#'+$.facebox.settings.id+' .loading').remove()
      $('#'+$.facebox.settings.id+' .pop_header').append(title)
      $('#'+$.facebox.settings.id+' .body').children().fadeIn('normal')
//		var zi = 100 + ($(".facebox").length * 2);
//      $('#'+$.facebox.settings.id).css('z-index', zi).css('left', $(window).width() / 2 - ($('#'+$.facebox.settings.id+' table').width() / 2))
      $('#'+$.facebox.settings.id).css('left', $(window).width() / 2 - ($('#'+$.facebox.settings.id+' table').width() / 2))
      $(document).trigger('reveal.facebox').trigger('afterReveal.facebox')
    },

    close: function(id) {
      $(document).trigger('close.facebox', [id])
      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]

      fillFaceboxFromHref(this.href, title, klass)
      fillFaceboxFromIFrame(this.href, title, klass)
      return false
    }

    return this.click(clickHandler)
  }

  /*
   * Private methods
   */

  // called one time to setup facebox on this page
  function init(settings) {
	 if ($("#"+$.facebox.settings.id+".facebox").length > 0) return 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).attr("id", $.facebox.settings.id))

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

    $('#'+$.facebox.settings.id+'').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.settings.id+' .close').click(function(e){
		e.preventDefault()
		$.facebox.close($(this).parents(".facebox").attr("id"))
	})
    $('#'+$.facebox.settings.id+' .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, title, id, klass) {
    // div
    if (href.match(/#/)) {
      var url    = window.location.href.split('#')[0]
      var target = href.replace(url,'')
      $.facebox.reveal($(target).clone().show(), title, id, klass)

    // image
    } else if (href.match($.facebox.settings.imageTypesRegexp)) {
      fillFaceboxFromImage(href, title, id, klass)
    // ajax
    } else {
      fillFaceboxFromAjax(href, title, id, klass)
    }
  }

	function fillFaceboxFromIFrame(href, title, id, klass) {

    var data = $('<iframe src="' + href + '" width="100%" height="400px" marginwidth="0" marginheight="0" align="center" scrolling="yes" frameborder="0" allowtransparency="true"/>')
	.load(function () {

        var IFrame = this;
        var height = $(this).height();
        if (IFrame && !window.opera) {
            IFrame.style.display = "block";
            if (IFrame.contentDocument && IFrame.contentDocument.body.offsetHeight) {
                height = IFrame.contentDocument.body.offsetHeight+25;
            } else if (IFrame.Document && IFrame.Document.body.scrollHeight) {
                height = IFrame.Document.body.scrollHeight;
            }
        }
        $(this).height(height);

    });

	$.facebox.reveal(data, title, id, klass);

  } 
  
  function fillFaceboxFromImage(href, title, id, klass) {
    var image = new Image()
    image.onload = function() {
      $.facebox.reveal('<div class="image"><img src="' + image.src + '" /></div>', image.title, klass)
    }
    image.src = href
	image.title = title
  }

  function fillFaceboxFromAjax(href, title, id, klass) {
    $.get(href, function(data) { $.facebox.reveal(data, title, id, klass) })
  }

  function skipOverlay() {
    return $.facebox.settings.overlay == false || $.facebox.settings.opacity === null 
  }

  function showOverlay() {
    if (skipOverlay()) return

    if ($('#'+$.facebox.settings.id+'_overlay.facebox_overlay').length == 0) 
      $("body").append('<div id="'+$.facebox.settings.id+'_overlay" class="facebox_overlay facebox_hide"></div>')

	var id = $.facebox.settings.id;
	var zi = 99 + ($(".facebox").length * 2);

    $('#'+id+'_overlay.facebox_overlay').attr("rel", id).hide().addClass("facebox_overlayBG")
      .css('opacity', $.facebox.settings.opacity)
		.css('z-index', zi)
      .click(function() { $(document).trigger('close.facebox', [$(this).attr("rel")]) 
								  $(this).remove()
		})
      .fadeIn(200)
    return false
  }

  function hideOverlay(id) {
    if (skipOverlay()) return

    if(id != undefined)
	{
		$('#' + id + '_overlay.facebox_overlay').fadeOut(200, function(){
			$('#' + id + '_overlay.facebox_overlay').removeClass("facebox_overlayBG")
			$('#' + id + '_overlay.facebox_overlay').addClass("facebox_hide")
			$('#' + id + '_overlay.facebox_overlay').remove()
		})
	}
	else
	{
		$('.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(e, id) {
    $(document).unbind('keydown.facebox')
 if(id != undefined) {
	  $('#'+id).fadeOut(function() {
        $('#'+id+' .pop_header').removeClass().addClass('pop_header')
        $('#'+id+' .content').removeClass().addClass('content')
		  hideOverlay(id)
        $('#'+id+' .loading').remove()
      })
	}
	else{
	  $('.facebox').fadeOut(function() {
        $('.facebox .pop_header').removeClass().addClass('pop_header')
        $('.facebox .content').removeClass().addClass('content')
		  hideOverlay()
        $('.facebox .loading').remove()
      })
	}
  })

})(jQuery);
