(function($) {
  $.face_popup = function(data, klass) {
    $.face_popup.loading()

    if (data.ajax) fillface_popupFromAjax(data.ajax)
    else if (data.image) fillface_popupFromImage(data.image)
    else if (data.div) fillface_popupFromHref(data.div)
    else if ($.isFunction(data)) data.call($)
    else $.face_popup.reveal(data, klass)
  }

  /*
   * Public, $.face_popup methods
   */

  $.extend($.face_popup, {
    settings: {
      opacity      : 0,
      overlay      : true,
      loadingImage : './imagens/facebox/loading.gif',
      closeImage   : './imagens/facebox/closelabel.png',
      imageTypes   : [ 'png', 'jpg', 'jpeg', 'gif' ],
      face_popupHtml  : '<div id="face_popup" style="display:none;"> \
	  		<div class="popup"> \
				<div class="body"> \
            		<div class="btn-header"> \
        				<a href="#" class="close"> \
            				<img src="imagens/facebox/closelabel.png" title="fechar" class="close_image" /> \
            			</a> \
        			</div> \
            		<div class="content"></div> \
            	</div> \
        	</div> \
	  </div>'
	},

    loading: function() {
      init()
      if ($('#face_popup .loading').length == 1) return true
      showOverlay()

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

      $('#face_popup').css({
        top:	getPageScroll()[1] + (getPageHeight() -  $('#face_popup').height())/2,
        left:	($(window).width() - $('#face_popup').width())/2
      }).show()
	
	  $(document).bind('keydown.face_popup', function(e) {
        if (e.keyCode == 27) $.face_popup.close()
        return true
      })
      $(document).trigger('loading.face_popup')
    },

    reveal: function(data, klass) {
      $(document).trigger('beforeReveal.face_popup')
      if (klass) $('#face_popup .content').addClass(klass)
      $('#face_popup .content').append(data)
      $('#face_popup .loading').remove()
      $('#face_popup .body').children().fadeIn('normal')
      $('#face_popup .content').css('background','white');
	  $('#face_popup').css('left', $(window).width() / 2 - ($('#face_popup').width() / 2))
	  $('#face_popup').css({top:getPageScroll()[1] + ($(window).height() -  $('#face_popup').height())/2 });
	  $(document).trigger('reveal.face_popup').trigger('afterReveal.face_popup');
	},

    close: function() {
      $(document).trigger('close.face_popup')
      return false
    }
  })

  /*
   * Public, $.fn methods
   */

  $.fn.face_popup = function(settings) {
    init(settings)

    function clickHandler() {
      $.face_popup.loading(true)

      // support for rel="face_popup.inline_popup" syntax, to add a class
      // also supports deprecated "face_popup[.inline_popup]" syntax
      var klass = this.rel.match(/face_popup\[?\.(\w+)\]?/)
      if (klass) klass = klass[1]

      fillface_popupFromHref(this.href, klass)
      return false
    }

    return this.click(clickHandler)
  }

  /*
   * Private methods
   */

  // called one time to setup face_popup on this page
  function init(settings) {
    if ($.face_popup.settings.inited) return true
    else $.face_popup.settings.inited = true

    $(document).trigger('init.face_popup')
    makeCompatible()

    var imageTypes = $.face_popup.settings.imageTypes.join('|')
    $.face_popup.settings.imageTypesRegexp = new RegExp('\.' + imageTypes + '$', 'i')

    if (settings) $.extend($.face_popup.settings, settings)
    $('body').append($.face_popup.settings.face_popupHtml)

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

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

    $('#face_popup .close').click($.face_popup.close)
    $('#face_popup .close_image').attr('src', $.face_popup.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 = $.face_popup.settings

    $s.loadingImage = $s.loading_image || $s.loadingImage
    $s.closeImage = $s.close_image || $s.closeImage
    $s.imageTypes = $s.image_types || $s.imageTypes
    $s.face_popupHtml = $s.face_popup_html || $s.face_popupHtml
  }

  // Figures out what you want to display and displays it
  // formats are:
  //     div: #id
  //   image: blah.extension
  //    ajax: anything else
  function fillface_popupFromHref(href, klass) {
    // div
    if (href.match(/#/)) {
      var url    = window.location.href.split('#')[0]
      var target = href.replace(url,'')
      $.face_popup.reveal($(target).clone().show(), klass)

    // image
    } else if (href.match($.face_popup.settings.imageTypesRegexp)) {
      fillface_popupFromImage(href, klass)
    // ajax
    } else {
      fillface_popupFromAjax(href, klass)
    }
  }

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

  function fillface_popupFromAjax(href, klass) {
    $.get(href, function(data) { $.face_popup.reveal(data, klass) })
  }

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

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

    if ($('face_popup_overlay').length == 0) 
      $("body").append('<div id="face_popup_overlay" class="face_popup_hide"></div>')

	// PARA NÃO FECHAR QUANDO É FEITO UM CLIQUE NA MÁSCARA OPACA
	$('#face_popup_overlay').hide().addClass("face_popup_overlayBG")
      .css('opacity', $.face_popup.settings.opacity)
      .fadeIn(200)
    
	return false
  }

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

    $('#face_popup_overlay').fadeOut(200, function(){
      $("#face_popup_overlay").removeClass("face_popup_overlayBG")
      $("#face_popup_overlay").addClass("face_popup_hide") 
      $("#face_popup_overlay").remove()
    })
    
    return false
  }

  /*
   * Bindings
   */

  $(document).bind('close.face_popup', function() {
    $(document).unbind('keydown.face_popup')
    $('#face_popup').fadeOut(function() {
      $('#face_popup .content').removeClass().addClass('content')
      hideOverlay()
      $('#face_popup .loading').remove()
    })
  })
  
  /* PARA MEXER A JANELA DO FORMULÁRIO */
  jQuery(window).scroll(function(){
  	// MEXENDO O FORMULÁRIO
	if(jQuery('#face_popup').length > 0) {
		if(getPageSize()[3] >= jQuery('#face_popup').height()) 	jQuery('#face_popup').css({top: (getPageSize()[3] - jQuery('#face_popup').height())/2 + getPageScroll()[1]});
		else jQuery('#face_popup').css({top:(jQuery('#face_popup').height() - getPageSize()[3])/2 + getPageScroll()[1]});
	}
  });

})(jQuery);