/*
	jQuery Coda-Slider v2.0 - http://www.ndoherty.biz/coda-slider
	Copyright (c) 2009 Niall Doherty
	This plugin available for use in all personal or commercial projects under both MIT and GPL licenses.
*/

$(function(){
    // Remove the coda-slider-no-js class from the body
    $("body").removeClass("coda-slider-no-js");
    // Preloader
    $(".coda-slider").children('.panel').hide().end().prepend('<p class="loading">Loading...<br /><img src="images/ajax-loader.gif" alt="loading..." /></p>');
});

var sliderCount = 1;
var sliderSettings;

$.fn.codaSlider = function(settings) {
    settings = $.extend({
        autoHeight: true,
        autoHeightEaseDuration: 1000,
        autoHeightEaseFunction: "easeInOutExpo",
        autoSlide: false,
        autoSlideInterval: 7000,
        autoSlideStopWhenClicked: true,
        crossLinking: true,
        dynamicArrows: true,
        dynamicArrowLeftText: "&#171; left",
        dynamicArrowRightText: "right &#187;",
        dynamicTabs: true,
        dynamicTabsAlign: "center",
        dynamicTabsPosition: "top",
        externalTriggerSelector: "a.xtrig",
        firstPanelToLoad: 1,
        panelTitleSelector: "h2.title",
        slideEaseDuration: 1000,
        slideEaseFunction: "easeInOutExpo"
    }, settings);
    
    //var sayHi = new Function('alert(\'say hi from the slider\');');
    
	
    return this.each(function(){
		
        // Uncomment the line below to test your preloader
        // alert("Testing preloader");
		
        var slider = $(this);
        var activeAutoSlide = settings.autoSlide;
		
        // If we need arrows
        if (settings.dynamicArrows) {
            slider.parent().addClass("arrows");
            slider.before('<div class="coda-nav-left" id="coda-nav-left-' + sliderCount + '"><a href="#">' + settings.dynamicArrowLeftText + '</a></div>');
            slider.after('<div class="coda-nav-right" id="coda-nav-right-' + sliderCount + '"><a href="#">' + settings.dynamicArrowRightText + '</a></div>');
        };
		
        var panelWidth = slider.find(".panel").width();
        var panelCount = slider.find(".panel").size();
        var panelContainerWidth = panelWidth*panelCount;
        var navClicks = 0; // Used if autoSlideStopWhenClicked = true
		
        // Surround the collection of panel divs with a container div (wide enough for all panels to be lined up end-to-end)
        $('.panel', slider).wrapAll('<div class="panel-container"></div>');
        // Specify the width of the container div (wide enough for all panels to be lined up end-to-end)
        $(".panel-container", slider).css({
            width: panelContainerWidth
        });
		
        // Specify the current panel.
        // If the loaded URL has a hash (cross-linking), we're going to use that hash to give the slider a specific starting position...
        if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
            currentPanel = parseInt(location.hash.slice(1));
            var offset = - (panelWidth*(currentPanel - 1));
            $('.panel-container', slider).css({
                marginLeft: offset
            });
        // If that's not the case, check to see if we're supposed to load a panel other than Panel 1 initially...
        } else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) { 
            currentPanel = settings.firstPanelToLoad;
            var offset = - (panelWidth*(currentPanel - 1));
            $('.panel-container', slider).css({
                marginLeft: offset
            });
        // Otherwise, we'll just set the current panel to 1...
        } else { 
            var currentPanel = 1;
        };
			
        // Left arrow click
        $("#coda-nav-left-" + sliderCount + " a").click(function(){
            navClicks++;
            if (currentPanel == 1) {
                offset = - (panelWidth*(panelCount - 1));
                alterPanelHeight(panelCount - 1);
                currentPanel = panelCount;
                slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('li:last a').addClass('current');
            } else {
                currentPanel -= 1;
                alterPanelHeight(currentPanel - 1);
                offset = - (panelWidth*(currentPanel - 1));
                slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().prev().find('a').addClass('current');
            };
            $('.panel-container', slider).animate({
                marginLeft: offset
            }, settings.slideEaseDuration, settings.slideEaseFunction);
            if (settings.crossLinking) {
                location.hash = currentPanel
            }; // Change the URL hash (cross-linking)
            return false;
        });
			
        // Right arrow click
        $('#coda-nav-right-' + sliderCount + ' a').click(function(){
            navClicks++;
            if (currentPanel == panelCount) {
                offset = 0;
                currentPanel = 1;
                alterPanelHeight(0);
                slider.siblings('.coda-nav').find('a.current').removeClass('current').parents('ul').find('a:eq(0)').addClass('current');
            } else {
                offset = - (panelWidth*currentPanel);
                alterPanelHeight(currentPanel);
                currentPanel += 1;
                slider.siblings('.coda-nav').find('a.current').removeClass('current').parent().next().find('a').addClass('current');
            };
            $('.panel-container', slider).animate({
                marginLeft: offset
            }, settings.slideEaseDuration, settings.slideEaseFunction);
            if (settings.crossLinking) {
                location.hash = currentPanel
            }; // Change the URL hash (cross-linking)
            return false;
        });
		
        // If we need a dynamic menu
        if (settings.dynamicTabs) {
            var dynamicTabs = '<div class="coda-nav" id="coda-nav-' + sliderCount + '"><ul></ul></div>';
            switch (settings.dynamicTabsPosition) {
                case "bottom":
                    slider.parent().append(dynamicTabs);
                    break;
                default:
                    slider.parent().prepend(dynamicTabs);
                    break;
            };
            ul = $('#coda-nav-' + sliderCount + ' ul');
            // Create the nav items
            $('.panel', slider).each(function(n) {
                ul.append('<li class="tab' + (n+1) + '"><a href="#' + (n+1) + '">' + $(this).find(settings.panelTitleSelector).text() + '</a></li>');												
            });
            navContainerWidth = slider.width() + slider.siblings('.coda-nav-left').width() + slider.siblings('.coda-nav-right').width();
            ul.parent().css({
                width: navContainerWidth
            });
            switch (settings.dynamicTabsAlign) {
                case "center":
                    ul.css({
                        width: ($("li", ul).width() + 2) * panelCount
                    });
                    break;
                case "right":
                    ul.css({
                        float: 'right'
                    });
                    break;
            };
        };
			
        // If we need a tabbed nav
        $('#coda-nav-' + sliderCount + ' a').each(function(z) {
            // What happens when a nav link is clicked
            $(this).bind("click", function() {
                navClicks++;
                if ($(this).attr("href").slice(1) == "stop") {
                    cambiarAutoSlide ();
                    navClicks--;
                }
                else {
                    $(this).addClass('current').parents('ul').find('a').not($(this)).removeClass('current');
                    offset = - (panelWidth*z);
                    alterPanelHeight(z);
                    currentPanel = z + 1;
                    changeBackground(currentPanel);
                    $('.panel-container', slider).animate({
                        marginLeft: offset
                    }, settings.slideEaseDuration, settings.slideEaseFunction);
                }
                if (!settings.crossLinking) {
                    return false
                }; // Don't change the URL hash unless cross-linking is specified
            });
        });
		
        // External triggers (anywhere on the page)
        $(settings.externalTriggerSelector).each(function() {
            // Make sure this only affects the targeted slider
            if (sliderCount == parseInt($(this).attr("rel").slice(12))) {
                $(this).bind("click", function() {
                    navClicks++;
                    if ($(this).attr("href").slice(1) == "stop") {
                        cambiarAutoSlide ();
                        navClicks--;
                    }
                    else {
                        targetPanel = parseInt($(this).attr("href").slice(1));
                        offset = - (panelWidth*(targetPanel - 1));
                        alterPanelHeight(targetPanel - 1);
                        currentPanel = targetPanel;
                        // Switch the current tab:
                        slider.siblings('.coda-nav').find('a').removeClass('current').parents('ul').find('li:eq(' + (targetPanel - 1) + ') a').addClass('current');
                        // Slide
                        $('.panel-container', slider).animate({
                            marginLeft: offset
                        }, settings.slideEaseDuration, settings.slideEaseFunction);
                        changeBackground(currentPanel);
                    }
                    if (!settings.crossLinking) {
                        return false
                    } // Don't change the URL hash unless cross-linking is specified
                });
            }
        });
			
        // Specify which tab is initially set to "current". Depends on if the loaded URL had a hash or not (cross-linking).
        if (settings.crossLinking && location.hash && parseInt(location.hash.slice(1)) <= panelCount) {
            $("#coda-nav-" + sliderCount + " a:eq(" + (location.hash.slice(1) - 1) + ")").addClass("current");
        // If there's no cross-linking, check to see if we're supposed to load a panel other than Panel 1 initially...
        } else if (settings.firstPanelToLoad != 1 && settings.firstPanelToLoad <= panelCount) {
            $("#coda-nav-" + sliderCount + " a:eq(" + (settings.firstPanelToLoad - 1) + ")").addClass("current");
        // Otherwise we must be loading Panel 1, so make the first tab the current one.
        } else {
            $("#coda-nav-" + sliderCount + " a:eq(0)").addClass("current");
        };
		
        // Set the height of the first panel
        if (settings.autoHeight) {
            panelHeight = $('.panel:eq(' + (currentPanel - 1) + ')', slider).height();
            slider.css({
                height: panelHeight
            });
        };
		
        // Trigger autoSlide
        if (settings.autoSlide) {
            slider.ready(function() {
                setTimeout(autoSlide,settings.autoSlideInterval);
            });
        };
		
        function alterPanelHeight(x) {
            if (settings.autoHeight) {
                panelHeight = $('.panel:eq(' + x + ')', slider).height()
                slider.animate({
                    height: panelHeight
                }, settings.autoHeightEaseDuration, settings.autoHeightEaseFunction);
            };
        };
        
        function cambiarAutoSlide () {
            if (settings.autoSlide) {
                activeAutoSlide = !activeAutoSlide;
            }
            if(activeAutoSlide){
                $('#stop-element').attr('src', webroot + 'img/pause.png');
            }
            else{
                $('#stop-element').attr('src', webroot + 'img/play.png');
            }
        }
		
        function autoSlide() {
            if ((navClicks == 0 || !settings.autoSlideStopWhenClicked) && activeAutoSlide == true) {
                if (currentPanel == panelCount) {
                    var offset = 0;
                    currentPanel = 1;
                } else {
                    var offset = - (panelWidth*currentPanel);
                    currentPanel += 1;
                };
                alterPanelHeight(currentPanel - 1);
                // Switch the current tab:
                $('.coda-nav').find('a').removeClass('current').parents('ul').find('li:eq(' + (currentPanel - 1) + ') a').addClass('current');
                // Slide:
                $('.panel-container', slider).animate({
                    marginLeft: offset
                }, settings.slideEaseDuration, settings.slideEaseFunction);
                changeBackground(currentPanel);
            }
            setTimeout(autoSlide,settings.autoSlideInterval);
        }
		
        // Kill the preloader
        $('.panel', slider).show().end().find("p.loading").remove();
        slider.removeClass("preload");
		
        sliderCount++;
		
    });
};
function changeBackground(offset){
    var back = $('#coda-back').css('background-image');
    back = basename(stripUrl(back));
    if(back.toString() != offerBacks[offset-1].toString()){
        $('#coda-back').fadeTo('fast', 0);
        $('.coda-nav').fadeTo('fast', 0);
        $('#coda-back').css('background-image', 'url('+webroot+'img/'+offerBacks[offset-1]+')');
        $('#coda-back').fadeTo('slow', 1);
        $('.coda-nav').fadeTo('slow', 1);
    }
}
function basename (path, suffix) {
    // Returns the filename component of the path  
    // 
    // version: 1103.1210
    // discuss at: http://phpjs.org/functions/basename    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Ash Searle (http://hexmen.com/blog/)
    // +   improved by: Lincoln Ramsay
    // +   improved by: djmix
    // *     example 1: basename('/www/site/home.htm', '.htm');    // *     returns 1: 'home'
    // *     example 2: basename('ecra.php?p=1');
    // *     returns 2: 'ecra.php?p=1'
    var b = path.replace(/^.*[\/\\]/g, '');
    if (typeof(suffix) == 'string' && b.substr(b.length - suffix.length) == suffix) {
        b = b.substr(0, b.length - suffix.length);
    }
 
    return b;
}
function stripUrl(s){
    var rx=/url\(["']?([^'")]+)['"]?\)/;
    return s.replace(rx,'$1').replace('/thumbs','');
}