/*!
* jQuery imagesLoaded plugin v1.2.1
* http://github.com/desandro/imagesloaded
*
* MIT License. by Paul Irish et al.
*/

(function ($, undefined) {

    // $('#my-container').imagesLoaded(myFunction)
    // or
    // $('img').imagesLoaded(myFunction)

    // execute a callback when all images have loaded.
    // needed because .load() doesn't work on cached images

    // callback is executed when all images has fineshed loading
    // callback function arguments: $all_images, $proper_images, $broken_images
    // `this` is the jQuery wrapped container

    // returns previous jQuery wrapped container extended with deferred object
    // done method arguments: .done( function( $all_images ){ ... } )
    // fail method arguments: .fail( function( $all_images, $proper_images, $broken_images ){ ... } )
    // progress method arguments: .progress( function( images_count, loaded_count, proper_count, broken_count )

    $.fn.imagesLoaded = function (callback) {
        var $this = this,
		deferred = $.Deferred(),
		$images = $this.find('img').add($this.filter('img')),
		len = $images.length,
		blank = 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==',
		loaded = [],
		proper = [],
		broken = [];

        function doneLoading() {
            var $proper = $(proper),
			$broken = $(broken);

            if (broken.length) {
                deferred.reject($images, $proper, $broken);
            } else {
                deferred.resolve($images);
            }

            callback.call($this, $images, $proper, $broken);
        }

        function imgLoaded(event) {
            // dont proceed if img src is blank or if img is already loaded
            if (event.target.src === blank || $.inArray(this, loaded) !== -1) {
                return;
            }

            loaded.push(this);
            // keep track of broken and properly loaded images
            if (event.type === 'error') {
                broken.push(this);
            } else {
                proper.push(this);
            }

            deferred.notify($images.length, loaded.length, proper.length, broken.length);

            if (--len <= 0) {
                setTimeout(doneLoading);
                $images.unbind('.imagesLoaded', imgLoaded);
            }
        }

        // if no images, trigger immediately
        if (!len) {
            doneLoading();
        }

        $images.bind('load.imagesLoaded error.imagesLoaded', imgLoaded).each(function () {
            // cached images don't fire load sometimes, so we reset src.
            var src = this.src;
            // webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f
            // data uri bypasses webkit log warning (thx doug jones)
            this.src = blank;
            this.src = src;
        });

        return deferred.promise($this);
    };

})(jQuery);