/* ------------------------------------------------------------------------
	Class: prettyPhoto
	Use: Lightbox clone for jQuery
	Author: Stephane Caron (http://www.no-margin-for-errors.com)
	Version: 3.0.1
------------------------------------------------------------------------- */

(function($) {
	$.prettyPhoto = {version: '3.0'};
	
	$.fn.prettyPhoto = function(pp_settings) {
		pp_settings = jQuery.extend({
			animation_speed: 'fast', /* fast/slow/normal */
			slideshow: false, /* false OR interval time in ms */
			autoplay_slideshow: false, /* true/false */
			opacity: 0.85, /* Value between 0 and 1 */
			show_title: true, /* true/false */
			allow_resize: true, /* Resize the photos bigger than viewport. true/false */
			default_width: 758,
			default_height: 450,
			counter_separator_label: '/', /* The separator for the gallery counter 1 "of" 2 */
			theme: 'facebook', /* light_rounded / dark_rounded / light_square / dark_square / facebook */
			hideflash: false, /* Hides all the flash object on a page, set to TRUE if flash appears over prettyPhoto */
			wmode: 'opaque', /* Set the flash wmode attribute */
			autoplay: true, /* Automatically start videos: True/False */
			modal: false, /* If set to true, only the close button will close the window */
			overlay_gallery: true, /* If set to true, a gallery will overlay the fullscreen image on mouse over */
			keyboard_shortcuts: false, /* Set to false if you open forms inside prettyPhoto */
			changepicturecallback: function(){}, /* Called everytime an item is shown/changed */
			callback: function(){}, /* Called when prettyPhoto is closed */
			markup: '<div class="pp_pic_holder"> \
						<div class="ppt" style="display:none;">&nbsp;</div> \
						<div class="pp_top"> \
							<div class="pp_left"></div> \
							<div class="pp_middle"></div> \
							<div class="pp_right"></div> \
						</div> \
						<div class="pp_content_container"> \
							<div class="pp_left"> \
							<div class="pp_right"> \
                                <a class="pp_close" href="#">Fermer</a> \
								<div class="pp_content"> \
                                    <div class="pp_loaderIcon"></div> \
									<div class="pp_fade"> \
										<a href="#" class="pp_expand" title="Expand the image">Expand</a> \
										<div class="pp_hoverContainer"> \
											<a class="pp_next" href="#">suivant</a> \
											<a class="pp_previous" href="#">précédent</a> \
										</div> \
										<div id="pp_full_res"></div> \
										<div class="pp_details clearfix"> \
											<p class="pp_description" style="display:none;">Description ici</p> \
											<div class="pp_nav"> \
												<a href="#" class="pp_arrow_previous">précédent</a> \
												<p class="currentTextHolder">0/0</p> \
												<a href="#" class="pp_arrow_next">suivant</a> \
											</div> \
										</div> \
									</div> \
								</div> \
							</div> \
							</div> \
						</div> \
						<div class="pp_bottom"> \
							<div class="pp_left"></div> \
							<div class="pp_middle"></div> \
							<div class="pp_right"></div> \
						</div> \
					</div> \
					<div class="pp_overlay"></div>',
			gallery_markup: '<div class="pp_gallery"> \
								<a href="#" class="pp_arrow_previous">précédent</a> \
								<ul> \
									{gallery} \
								</ul> \
								<a href="#" class="pp_arrow_next">suivant</a> \
							</div>',
			image_markup: '<img id="fullResImage" src="" />',
			flash_markup: '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="{width}" height="{height}"><param name="wmode" value="{wmode}" /><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="{path}" /><embed src="{path}" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="{width}" height="{height}" wmode="{wmode}"></embed></object>',
			quicktime_markup: '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab" height="{height}" width="{width}"><param name="src" value="{path}"><param name="autoplay" value="{autoplay}"><param name="type" value="video/quicktime"><embed src="{path}" height="{height}" width="{width}" autoplay="{autoplay}" type="video/quicktime" pluginspage="http://www.apple.com/quicktime/download/"></embed></object>',
			iframe_markup: '<iframe src ="{path}" width="{width}" height="{height}" frameborder="no"></iframe>',
			inline_markup: '<div class="pp_inline clearfix">{content}</div>',
			custom_markup: ''
		}, pp_settings);

// Global variables accessible only by prettyPhoto
var matchedObjects = this, percentBased = false, pp_dimensions, pp_open,

// prettyPhoto container specific
		pp_contentHeight, pp_contentWidth, pp_containerHeight, pp_containerWidth,

// Window size
		windowHeight = $(window).height(), windowWidth = $(window).width(),

// Global elements
		pp_slideshow;

doresize = true, scroll_pos = _get_scroll();

// Window/Keyboard events
$(window).unbind('resize.prettyphoto').bind('resize.prettyphoto', function () { _center_overlay(); _resize_overlay(); });

if (pp_settings.keyboard_shortcuts) {
    $(document).unbind('keydown.prettyphoto').bind('keydown.prettyphoto', function (e) {
        if (typeof $pp_pic_holder != 'undefined') {
            if ($pp_pic_holder.is(':visible')) {
                switch (e.keyCode) {
                    case 37:
                        $.prettyPhoto.changePage('previous');
                        e.preventDefault();
                        break;
                    case 39:
                        $.prettyPhoto.changePage('next');
                        e.preventDefault();
                        break;
                    case 27:
                        if (!settings.modal)
                            $.prettyPhoto.close();
                        e.preventDefault();
                        break;
                };
                // return false;
            };
        };
    });
}


/**
* Initialize prettyPhoto.
*/
$.prettyPhoto.initialize = function () {
    settings = pp_settings;

    if ($.browser.msie && parseInt($.browser.version) == 6) settings.theme = "light_square"; // Fallback to a supported theme for IE6

    // Find out if the picture is part of a set
    theRel = $(this).attr('rel');
    galleryRegExp = /\[(?:.*)\]/;
    isSet = (galleryRegExp.exec(theRel)) ? true : false;

    // Put the SRCs, TITLEs, ALTs into an array.
    pp_images = (isSet) ? jQuery.map(matchedObjects, function (n, i) { if ($(n).attr('rel').indexOf(theRel) != -1) return $(n).attr('href'); }) : $.makeArray($(this).attr('href'));
    pp_titles = (isSet) ? jQuery.map(matchedObjects, function (n, i) { if ($(n).attr('rel').indexOf(theRel) != -1) return ($(n).find('img').attr('alt')) ? $(n).find('img').attr('alt') : ""; }) : $.makeArray($(this).find('img').attr('alt'));
    pp_descriptions = (isSet) ? jQuery.map(matchedObjects, function (n, i) { if ($(n).attr('rel').indexOf(theRel) != -1) return ($(n).attr('title')) ? $(n).attr('title') : ""; }) : $.makeArray($(this).attr('title'));

    _buildOverlay(this); // Build the overlay {this} being the caller

    if (settings.allow_resize)
        $(window).bind('scroll.prettyphoto', function () { _center_overlay(); });

    set_position = jQuery.inArray($(this).attr('href'), pp_images); // Define where in the array the clicked item is positionned

    $.prettyPhoto.open();

    return false;
}


/**
* Opens the prettyPhoto modal box.
* @param image {String,Array} Full path to the image to be open, can also be an array containing full images paths.
* @param title {String,Array} The title to be displayed with the picture, can also be an array containing all the titles.
* @param description {String,Array} The description to be displayed with the picture, can also be an array containing all the descriptions.
*/
$.prettyPhoto.open = function (event) {
    if (typeof settings == "undefined") { // Means it's an API call, need to manually get the settings and set the variables
        settings = pp_settings;
        if ($.browser.msie && $.browser.version == 6) settings.theme = "light_square"; // Fallback to a supported theme for IE6
        pp_images = $.makeArray(arguments[0]);
        pp_titles = (arguments[1]) ? $.makeArray(arguments[1]) : $.makeArray("");
        pp_descriptions = (arguments[2]) ? $.makeArray(arguments[2]) : $.makeArray("");
        isSet = (pp_images.length > 1) ? true : false;
        set_position = 0;
        _buildOverlay(event.target); // Build the overlay {this} being the caller
    }

    if ($.browser.msie && $.browser.version == 6) $('select').css('visibility', 'hidden'); // To fix the bug with IE select boxes

    if (settings.hideflash) $('object,embed').css('visibility', 'hidden'); // Hide the flash

    _checkPosition($(pp_images).size()); // Hide the next/previous links if on first or last images.

    $('.pp_loaderIcon').show();

    // Fade the content in
    if ($ppt.is(':hidden')) $ppt.css('opacity', 0).show();
    $pp_overlay.show().fadeTo(settings.animation_speed, settings.opacity);

    // Display the current position
    $pp_pic_holder.find('.currentTextHolder').text((set_position + 1) + settings.counter_separator_label + $(pp_images).size());

    // Set the description
    $pp_pic_holder.find('.pp_description').show().html(unescape(pp_descriptions[set_position]));

    // Set the title
    (settings.show_title && pp_titles[set_position] != "" && typeof pp_titles[set_position] != "undefined") ? $ppt.html(unescape(pp_titles[set_position])) : $ppt.html('&nbsp;');

    // Get the dimensions
    movie_width = (parseFloat(grab_param('width', pp_images[set_position]))) ? grab_param('width', pp_images[set_position]) : settings.default_width.toString();
    movie_height = (parseFloat(grab_param('height', pp_images[set_position]))) ? grab_param('height', pp_images[set_position]) : settings.default_height.toString();

    // If the size is % based, calculate according to window dimensions
    if (movie_height.indexOf('%') != -1) { movie_height = parseFloat(($(window).height() * parseFloat(movie_height) / 100) - 150); percentBased = true; }
    if (movie_width.indexOf('%') != -1) { movie_width = parseFloat(($(window).width() * parseFloat(movie_width) / 100) - 150); percentBased = true; }

    // Fade the holder
    $pp_pic_holder.fadeIn(function () {
        imgPreloader = "";

        // Inject the proper content
        switch (_getFileType(pp_images[set_position])) {
            case 'image':
                imgPreloader = new Image();

                // Preload the neighbour images
                nextImage = new Image();
                if (isSet && set_position < $(pp_images).size() - 1) nextImage.src = pp_images[set_position + 1];
                prevImage = new Image();
                if (isSet && pp_images[set_position - 1]) prevImage.src = pp_images[set_position - 1];

                $pp_pic_holder.find('#pp_full_res')[0].innerHTML = settings.image_markup.replace(/{path}/g, pp_images[set_position]);

                imgPreloader.onload = function () {
                    // Fit item to viewport
                    pp_dimensions = _fitToViewport(imgPreloader.width, imgPreloader.height);

                    _showContent();
                };

                imgPreloader.onerror = function () {
                    alert('Image cannot be loaded. Make sure the path is correct and image exist.');
                    $.prettyPhoto.close();
                };

                imgPreloader.src = pp_images[set_position];
                break;

            case 'youtube':
                pp_dimensions = _fitToViewport(movie_width, movie_height); // Fit item to viewport

                movie = 'http://www.youtube.com/v/' + grab_param('v', pp_images[set_position]);
                if (settings.autoplay) movie += "&autoplay=1";

                toInject = settings.flash_markup.replace(/{width}/g, pp_dimensions['width']).replace(/{height}/g, pp_dimensions['height']).replace(/{wmode}/g, settings.wmode).replace(/{path}/g, movie);
                break;

            case 'vimeo':
                pp_dimensions = _fitToViewport(movie_width, movie_height); // Fit item to viewport

                movie_id = pp_images[set_position];
                var regExp = /http:\/\/(www\.)?vimeo.com\/(\d+)/;
                var match = movie_id.match(regExp);

                movie = 'http://player.vimeo.com/video/' + match[2] + '?title=0&amp;byline=0&amp;portrait=0';
                if (settings.autoplay) movie += "&autoplay=1;";

                vimeo_width = pp_dimensions['width'] + '/embed/?moog_width=' + pp_dimensions['width'];

                toInject = settings.iframe_markup.replace(/{width}/g, vimeo_width).replace(/{height}/g, pp_dimensions['height']).replace(/{path}/g, movie);
                break;

            case 'quicktime':
                pp_dimensions = _fitToViewport(movie_width, movie_height); // Fit item to viewport
                pp_dimensions['height'] += 15; pp_dimensions['contentHeight'] += 15; pp_dimensions['containerHeight'] += 15; // Add space for the control bar

                toInject = settings.quicktime_markup.replace(/{width}/g, pp_dimensions['width']).replace(/{height}/g, pp_dimensions['height']).replace(/{wmode}/g, settings.wmode).replace(/{path}/g, pp_images[set_position]).replace(/{autoplay}/g, settings.autoplay);
                break;

            case 'flash':
                pp_dimensions = _fitToViewport(movie_width, movie_height); // Fit item to viewport

                flash_vars = pp_images[set_position];
                flash_vars = flash_vars.substring(pp_images[set_position].indexOf('flashvars') + 10, pp_images[set_position].length);

                filename = pp_images[set_position];
                filename = filename.substring(0, filename.indexOf('?'));

                toInject = settings.flash_markup.replace(/{width}/g, pp_dimensions['width']).replace(/{height}/g, pp_dimensions['height']).replace(/{wmode}/g, settings.wmode).replace(/{path}/g, filename + '?' + flash_vars);
                break;

            case 'iframe':
                pp_dimensions = _fitToViewport(movie_width, movie_height); // Fit item to viewport

                frame_url = pp_images[set_position];
                frame_url = frame_url.substr(0, frame_url.indexOf('iframe') - 1);

                toInject = settings.iframe_markup.replace(/{width}/g, pp_dimensions['width']).replace(/{height}/g, pp_dimensions['height']).replace(/{path}/g, frame_url);
                break;

            case 'custom':
                pp_dimensions = _fitToViewport(movie_width, movie_height); // Fit item to viewport

                toInject = settings.custom_markup;
                break;

            case 'inline':
                // to get the item height clone it, apply default width, wrap it in the prettyPhoto containers , then delete
                myClone = $(pp_images[set_position]).clone().css({ 'width': settings.default_width }).wrapInner('<div id="pp_full_res"><div class="pp_inline clearfix"></div></div>').appendTo($('body')).show();
                doresize = false; // Make sure the dimensions are not resized.
                pp_dimensions = _fitToViewport($(myClone).width(), $(myClone).height());
                doresize = true; // Reset the dimensions
                $(myClone).remove();
                toInject = settings.inline_markup.replace(/{content}/g, $(pp_images[set_position]).html());
                break;
        };

        if (!imgPreloader) {
            $pp_pic_holder.find('#pp_full_res')[0].innerHTML = toInject;

            // Show content
            _showContent();
        };
    });

    return false;
};


/**
* Change page in the prettyPhoto modal box
* @param direction {String} Direction of the paging, previous or next.
*/
$.prettyPhoto.changePage = function (direction) {
    currentGalleryPage = 0;

    if (direction == 'previous') {
        set_position--;
        if (set_position < 0) {
            set_position = 0;
            return;
        };
    } else if (direction == 'next') {
        set_position++;
        if (set_position > $(pp_images).size() - 1) {
            set_position = 0;
        }
    } else {
        set_position = direction;
    };

    if (!doresize) doresize = true; // Allow the resizing of the images
    $('.pp_contract').removeClass('pp_contract').addClass('pp_expand');

    _hideContent(function () { $.prettyPhoto.open(); });
};


/**
* Change gallery page in the prettyPhoto modal box
* @param direction {String} Direction of the paging, previous or next.
*/
$.prettyPhoto.changeGalleryPage = function (direction) {
    if (direction == 'next') {
        currentGalleryPage++;

        if (currentGalleryPage > totalPage) {
            currentGalleryPage = 0;
        };
    } else if (direction == 'previous') {
        currentGalleryPage--;

        if (currentGalleryPage < 0) {
            currentGalleryPage = totalPage;
        };
    } else {
        currentGalleryPage = direction;
    };

    // Slide the pages, if we're on the last page, find out how many items we need to slide. To make sure we don't have an empty space.
    itemsToSlide = (currentGalleryPage == totalPage) ? pp_images.length - ((totalPage) * itemsPerPage) : itemsPerPage;

    $pp_pic_holder.find('.pp_gallery li').each(function (i) {
        $(this).animate({
            'left': (i * itemWidth) - ((itemsToSlide * itemWidth) * currentGalleryPage)
        });
    });
};


/**
* Start the slideshow...
*/
$.prettyPhoto.startSlideshow = function () {
    if (typeof pp_slideshow == 'undefined') {
        $pp_pic_holder.find('.pp_play').unbind('click').removeClass('pp_play').addClass('pp_pause').click(function () {
            $.prettyPhoto.stopSlideshow();
            return false;
        });
        pp_slideshow = setInterval($.prettyPhoto.startSlideshow, settings.slideshow);
    } else {
        $.prettyPhoto.changePage('next');
    };
}


/**
* Stop the slideshow...
*/
$.prettyPhoto.stopSlideshow = function () {
    $pp_pic_holder.find('.pp_pause').unbind('click').removeClass('pp_pause').addClass('pp_play').click(function () {
        $.prettyPhoto.startSlideshow();
        return false;
    });
    clearInterval(pp_slideshow);
    pp_slideshow = undefined;
}


/**
* Closes prettyPhoto.
*/
$.prettyPhoto.close = function () {
    if ($pp_overlay.is(":animated")) return;

    $.prettyPhoto.stopSlideshow();

    $pp_pic_holder.stop().find('object,embed').css('visibility', 'hidden');

    $('div.pp_pic_holder,div.ppt,.pp_fade').fadeOut(settings.animation_speed, function () { $(this).remove(); });

    $pp_overlay.fadeOut(settings.animation_speed, function () {
        if ($.browser.msie && $.browser.version == 6) $('select').css('visibility', 'visible'); // To fix the bug with IE select boxes

        if (settings.hideflash) $('object,embed').css('visibility', 'visible'); // Show the flash

        $(this).remove(); // No more need for the prettyPhoto markup

        $(window).unbind('scroll');

        settings.callback();

        doresize = true;

        pp_open = false;

        delete settings;
    });
};

/**
* Set the proper sizes on the containers and animate the content in.
*/
function _showContent() {
    $('.pp_loaderIcon').hide();

    $ppt.fadeTo(settings.animation_speed, 1);

    // Calculate the opened top position of the pic holder
    projectedTop = scroll_pos['scrollTop'] + ((windowHeight / 2) - (pp_dimensions['containerHeight'] / 2));
    if (projectedTop < 0) projectedTop = 0;

    // Resize the content holder
    $pp_pic_holder.find('.pp_content')
				.animate({
				    height: pp_dimensions['contentHeight'],
				    width: pp_dimensions['contentWidth']
				}, settings.animation_speed);

    // Resize picture the holder
    $pp_pic_holder.animate({
        'top': projectedTop,
        'left': (windowWidth / 2) - (pp_dimensions['containerWidth'] / 2),
        width: pp_dimensions['containerWidth']
    }, settings.animation_speed, function () {
        $pp_pic_holder.find('.pp_hoverContainer,#fullResImage').height(pp_dimensions['height']).width(pp_dimensions['width']);

        $pp_pic_holder.find('.pp_fade').fadeIn(settings.animation_speed); // Fade the new content

        // Show the nav
        if (isSet && _getFileType(pp_images[set_position]) == "image") { $pp_pic_holder.find('.pp_hoverContainer').show(); } else { $pp_pic_holder.find('.pp_hoverContainer').hide(); }

        if (pp_dimensions['resized']) { // Fade the resizing link if the image is resized
            $('a.pp_expand,a.pp_contract').show();
        } else {
            $('a.pp_expand,a.pp_contract').hide();
        }

        if (settings.autoplay_slideshow && !pp_slideshow && !pp_open) $.prettyPhoto.startSlideshow();

        settings.changepicturecallback(); // Callback!

        pp_open = true;
    });

    _insert_gallery();
};

/**
* Hide the content...DUH!
*/
function _hideContent(callback) {
    // Fade out the current picture
    $pp_pic_holder.find('#pp_full_res object,#pp_full_res embed').css('visibility', 'hidden');
    $pp_pic_holder.find('.pp_fade').fadeOut(settings.animation_speed, function () {
        $('.pp_loaderIcon').show();

        callback();
    });
};

/**
* Check the item position in the gallery array, hide or show the navigation links
* @param setCount {integer} The total number of items in the set
*/
function _checkPosition(setCount) {
    (setCount > 1) ? $('.pp_nav').show() : $('.pp_nav').hide(); // Hide the bottom nav if it's not a set.
};

/**
* Resize the item dimensions if it's bigger than the viewport
* @param width {integer} Width of the item to be opened
* @param height {integer} Height of the item to be opened
* @return An array containin the "fitted" dimensions
*/
function _fitToViewport(width, height) {
    resized = false;

    _getDimensions(width, height);

    // Define them in case there's no resize needed
    imageWidth = width, imageHeight = height;

    if (((pp_containerWidth > windowWidth) || (pp_containerHeight > windowHeight)) && doresize && settings.allow_resize && !percentBased) {
        resized = true, fitting = false;

        while (!fitting) {
            if ((pp_containerWidth > windowWidth)) {
                imageWidth = (windowWidth - 200);
                imageHeight = (height / width) * imageWidth;
            } else if ((pp_containerHeight > windowHeight)) {
                imageHeight = (windowHeight - 200);
                imageWidth = (width / height) * imageHeight;
            } else {
                fitting = true;
            };

            pp_containerHeight = imageHeight, pp_containerWidth = imageWidth;
        };

        _getDimensions(imageWidth, imageHeight);
    };

    return {
        width: Math.floor(imageWidth),
        height: Math.floor(imageHeight),
        containerHeight: Math.floor(pp_containerHeight),
        containerWidth: Math.floor(pp_containerWidth) + 40, // 40 behind the side padding
        contentHeight: Math.floor(pp_contentHeight),
        contentWidth: Math.floor(pp_contentWidth),
        resized: resized
    };
};

/**
* Get the containers dimensions according to the item size
* @param width {integer} Width of the item to be opened
* @param height {integer} Height of the item to be opened
*/
function _getDimensions(width, height) {
    width = parseFloat(width);
    height = parseFloat(height);

    // Get the details height, to do so, I need to clone it since it's invisible
    $pp_details = $pp_pic_holder.find('.pp_details');
    $pp_details.width(width);
    detailsHeight = parseFloat($pp_details.css('marginTop')) + parseFloat($pp_details.css('marginBottom'));
    $pp_details = $pp_details.clone().appendTo($('body')).css({
        'position': 'absolute',
        'top': -10000
    });
    detailsHeight += $pp_details.height();
    detailsHeight = (detailsHeight <= 34) ? 36 : detailsHeight; // Min-height for the details
    if ($.browser.msie && $.browser.version == 7) detailsHeight += 8;
    $pp_details.remove();

    // Get the titles height, to do so, I need to clone it since it's invisible
    $pp_title = $pp_pic_holder.find('.ppt');
    $pp_title.width(width);
    titleHeight = parseFloat($pp_title.css('marginTop')) + parseFloat($pp_title.css('marginBottom'));
    $pp_title = $pp_title.clone().appendTo($('body')).css({
        'position': 'absolute',
        'top': -10000
    });
    titleHeight += $pp_title.height();
    $pp_title.remove();

    // Get the container size, to resize the holder to the right dimensions
    pp_contentHeight = height + detailsHeight;
    pp_contentWidth = width;
    pp_containerHeight = pp_contentHeight + titleHeight + $pp_pic_holder.find('.pp_top').height() + $pp_pic_holder.find('.pp_bottom').height();
    pp_containerWidth = width;
}

function _getFileType(itemSrc) {
    if (itemSrc.match(/youtube\.com\/watch/i)) {
        return 'youtube';
    } else if (itemSrc.match(/vimeo\.com/i)) {
        return 'vimeo';
    } else if (itemSrc.match(/\b.mov\b/i)) {
        return 'quicktime';
    } else if (itemSrc.match(/\b.swf\b/i)) {
        return 'flash';
    } else if (itemSrc.match(/\biframe=true\b/i)) {
        return 'iframe';
    } else if (itemSrc.match(/\bcustom=true\b/i)) {
        return 'custom';
    } else if (itemSrc.substr(0, 1) == '#') {
        return 'inline';
    } else {
        return 'image';
    };
};

function _center_overlay() {
    if (doresize && typeof $pp_pic_holder != 'undefined') {
        scroll_pos = _get_scroll();
        contentHeight = $pp_pic_holder.height(), contentwidth = $pp_pic_holder.width();

        projectedTop = (windowHeight / 2) + scroll_pos['scrollTop'] - (contentHeight / 2);
        if (projectedTop < 0) projectedTop = 0;

        $pp_pic_holder.css({
            'top': projectedTop,
            'left': (windowWidth / 2) + scroll_pos['scrollLeft'] - (contentwidth / 2)
        });
    };
};

function _get_scroll() {
    if (self.pageYOffset) {
        return { scrollTop: self.pageYOffset, scrollLeft: self.pageXOffset };
    } else if (document.documentElement && document.documentElement.scrollTop) { // Explorer 6 Strict
        return { scrollTop: document.documentElement.scrollTop, scrollLeft: document.documentElement.scrollLeft };
    } else if (document.body) {// all other Explorers
        return { scrollTop: document.body.scrollTop, scrollLeft: document.body.scrollLeft };
    };
};

function _resize_overlay() {
    windowHeight = $(window).height(), windowWidth = $(window).width();

    if (typeof $pp_overlay != "undefined") $pp_overlay.height($(document).height()).width(windowWidth);
};

function _insert_gallery() {
    if (isSet && settings.overlay_gallery && _getFileType(pp_images[set_position]) == "image") {
        itemWidth = 52 + 5; // 52 beign the thumb width, 5 being the right margin.
        navWidth = (settings.theme == "facebook") ? 58 : 38; // Define the arrow width depending on the theme

        itemsPerPage = Math.floor((pp_dimensions['containerWidth'] - 100 - navWidth) / itemWidth);
        itemsPerPage = (itemsPerPage < pp_images.length) ? itemsPerPage : pp_images.length;
        totalPage = Math.ceil(pp_images.length / itemsPerPage) - 1;

        // Hide the nav in the case there's no need for links
        if (totalPage == 0) {
            navWidth = 0; // No nav means no width!
            $pp_pic_holder.find('.pp_gallery .pp_arrow_next,.pp_gallery .pp_arrow_previous').hide();
        } else {
            $pp_pic_holder.find('.pp_gallery .pp_arrow_next,.pp_gallery .pp_arrow_previous').show();
        };

        galleryWidth = itemsPerPage * itemWidth + navWidth;

        // Set the proper width to the gallery items
        $pp_pic_holder.find('.pp_gallery')
					.width(galleryWidth)
					.css('margin-left', -(galleryWidth / 2));

        $pp_pic_holder
					.find('.pp_gallery ul')
					.width(itemsPerPage * itemWidth)
					.find('li.selected')
					.removeClass('selected');

        goToPage = (Math.ceil((set_position + 1) / itemsPerPage) < totalPage) ? Math.ceil((set_position + 1) / itemsPerPage) : totalPage;

        $.prettyPhoto.changeGalleryPage(goToPage);

        $pp_pic_holder
					.find('.pp_gallery ul li:eq(' + set_position + ')')
					.addClass('selected');
    } else {
        $pp_pic_holder.find('.pp_content').unbind('mouseenter mouseleave');
        $pp_pic_holder.find('.pp_gallery').hide();
    }
}

function _buildOverlay(caller) {

    $('body').append(settings.markup); // Inject the markup

    $pp_pic_holder = $('.pp_pic_holder'), $ppt = $('.ppt'), $pp_overlay = $('div.pp_overlay'); // Set my global selectors

    // Inject the inline gallery!
    if (isSet && settings.overlay_gallery) {
        currentGalleryPage = 0;
        toInject = "";
        for (var i = 0; i < pp_images.length; i++) {
            if (!pp_images[i].match(/\b(jpg|jpeg|png|gif)\b/gi)) {
                classname = 'default';
            } else {
                classname = '';
            }
            toInject += "<li class='" + classname + "'><a href='#'><img src='" + pp_images[i] + "' width='50' alt='' /></a></li>";
        };

        toInject = settings.gallery_markup.replace(/{gallery}/g, toInject);

        $pp_pic_holder.find('#pp_full_res').after(toInject);

        $pp_pic_holder.find('.pp_gallery .pp_arrow_next').click(function () {
            $.prettyPhoto.changeGalleryPage('next');
            $.prettyPhoto.stopSlideshow();
            return false;
        });

        $pp_pic_holder.find('.pp_gallery .pp_arrow_previous').click(function () {
            $.prettyPhoto.changeGalleryPage('previous');
            $.prettyPhoto.stopSlideshow();
            return false;
        });

        $pp_pic_holder.find('.pp_content').hover(
					function () {
					    $pp_pic_holder.find('.pp_gallery:not(.disabled)').fadeIn();
					},
					function () {
					    $pp_pic_holder.find('.pp_gallery:not(.disabled)').fadeOut();
					});

        itemWidth = 52 + 5; // 52 beign the thumb width, 5 being the right margin.
        $pp_pic_holder.find('.pp_gallery ul li').each(function (i) {
            $(this).css({
                'position': 'absolute',
                'left': i * itemWidth
            });

            $(this).find('a').unbind('click').click(function () {
                $.prettyPhoto.changePage(i);
                $.prettyPhoto.stopSlideshow();
                return false;
            });
        });
    };


    // Inject the play/pause if it's a slideshow
    if (settings.slideshow) {
        $pp_pic_holder.find('.pp_nav').prepend('<a href="#" class="pp_play">Play</a>')
        $pp_pic_holder.find('.pp_nav .pp_play').click(function () {
            $.prettyPhoto.startSlideshow();
            return false;
        });
    }

    $pp_pic_holder.attr('class', 'pp_pic_holder ' + settings.theme); // Set the proper theme

    $pp_overlay
				.css({
				    'opacity': 0,
				    'height': $(document).height(),
				    'width': $(window).width()
				})
				.bind('click', function () {
				    if (!settings.modal) $.prettyPhoto.close();
				});

    $('a.pp_close').bind('click', function () { $.prettyPhoto.close(); return false; });

    $('a.pp_expand').bind('click', function (e) {
        // Expand the image
        if ($(this).hasClass('pp_expand')) {
            $(this).removeClass('pp_expand').addClass('pp_contract');
            doresize = false;
        } else {
            $(this).removeClass('pp_contract').addClass('pp_expand');
            doresize = true;
        };

        _hideContent(function () { $.prettyPhoto.open(); });

        return false;
    });

    $pp_pic_holder.find('.pp_previous, .pp_nav .pp_arrow_previous').bind('click', function () {
        $.prettyPhoto.changePage('previous');
        $.prettyPhoto.stopSlideshow();
        return false;
    });

    $pp_pic_holder.find('.pp_next, .pp_nav .pp_arrow_next').bind('click', function () {
        $.prettyPhoto.changePage('next');
        $.prettyPhoto.stopSlideshow();
        return false;
    });

    _center_overlay(); // Center it
};

return this.unbind('click.prettyphoto').bind('click.prettyphoto', $.prettyPhoto.initialize); // Return the jQuery object for chaining. The unbind method is used to avoid click conflict when the plugin is called more than once
};

function grab_param(name, url) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(url);
    return (results == null) ? "" : results[1];
}

})(jQuery);
