/*
# jQuery Slinky Slider Plugin
# ---------------------------
# Version: 1.0
# ---------------------------
# Author: samhs
# http://ohwrite.co.uk/jquery/jquery-plugin-slinky-slider/
# http://docs.jquery.com/Plugins/SlinkySlider
#
# Copyright (c) 2009 Sam Hampton-Smith
#
# Dual licensed under the MIT and GPL licenses:
# http://www.opensource.org/licenses/mit-license.php
# http://www.gnu.org/licenses/gpl.html
#
# Please view files mit.txt and gpl.txt for full license terms
# And include these two files if you redistribute this software
*/
(function($) {
    $.fn.slinkySlider = function(settings) {
        // Utility variables - do not alter
        var currentpanel;
        var panelheight;
        var goforward = true;
        var t;
        settings = $.extend({}, $.fn.slinkySlider.defaults, settings);
        return $(this).each(function(){
            panelheight = $(this).height();
            $(this).css("overflow","hidden");
            settings.largesize = panelheight-((settings.numberofpanels-1)*(settings.smallsize+settings.panelspacing));
            container = $(this);
            elwidth = container.width();
            for (var i=1;i<=settings.numberofpanels;i++) {
                $(container).append("<div class='panelwrappers'><div class='panel'></div></div>");
                $(".panelwrappers:last .panel").load(settings.panelname+i+"/").parents(".panelwrappers").data("number",i);
            }
            currentpanel = $(".panelwrappers:first");
            $(".panelwrappers").css({
                "height" : settings.smallsize+"px",
                "float" : "left",
                "width" : elwidth+"px"
                });
            $(".panels").css({
                "height" : settings.largesize+"px",
                "width" : "100%"
            });
            $(currentpanel).css("height",settings.largesize+"px");
            $(".panelwrappers").not(":last").css("margin-bottom",settings.panelspacing+"px");
            $(".panelwrappers").each(function(){
                $(this).mousemove(function(){
                    switchpanel(this);
                });
            });
            if (settings.doauto) t = setTimeout(function(){
                switchpanel(null);
            },settings.autotimer);
        });
        function switchpanel(newpanel) {
            if (newpanel==currentpanel) {
            // do nothing because we're already on this panel
            } else {
                var auto = false;
                if (newpanel==null) {
                    auto = true;
                    if (goforward && $(currentpanel).data("number")==settings.numberofpanels) {
                        goforward=false;
                    }
                    if (!goforward && $(currentpanel).data("number")==1) {
                        goforward=true;
                    }
                    if (goforward) {
                        newpanel = $(currentpanel).next();
                    } else {
                        newpanel = $(currentpanel).prev();
                    }
                }
                else {
                    $(".panelwrappers").stop();
                    clearTimeout(t);
                }
                $(".panelwrappers").not(newpanel).animate({
                    height: settings.smallsize+"px"
                    },settings.transition, "swing");
                $(newpanel).animate({
                    height: settings.largesize+"px"
                    },settings.transition, "swing");
                currentpanel = newpanel;
                if (auto) t = setTimeout(function(){
                    switchpanel(null);
                },settings.autotimer);
            }
        }
    }
    $.fn.slinkySlider.defaults = {
        autotimer:5000,
        transition:1000,
        panelspacing:0,
        smallsize:35,
        numberofpanels:5,
        largesize:0,
        doauto:true,
        panelname:"slideshow/"
    }
})(jQuery);