//** Accordion content script by: Dynamic Drive (http://www.dynamicdrive.com) **//

var ddaccordion = {

    contentclassname: {},

    expandone: function(headerclass, selected) {
        this.toggleone(headerclass, selected, "expand")
    },

    collapseone: function(headerclass, selected) {
        this.toggleone(headerclass, selected, "collapse")
    },

    expandall: function(headerclass) {
        var $ = jQuery
        var $headers = $('.' + headerclass)
        $('.' + this.contentclassname[headerclass] + ':hidden').each(function() {
            $headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
        })
    },

    collapseall: function(headerclass) {
        var $ = jQuery
        var $headers = $('.' + headerclass)
        $('.' + this.contentclassname[headerclass] + ':visible').each(function() {
            $headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
        })
    },

    toggleone: function(headerclass, selected, optstate) {
        var $ = jQuery
        var $targetHeader = $('.' + headerclass).eq(selected)
        var $subcontent = $('.' + this.contentclassname[headerclass]).eq(selected)
        if (typeof optstate == "undefined" || optstate == "expand" && $subcontent.is(":hidden") || optstate == "collapse" && $subcontent.is(":visible"))
            $targetHeader.trigger("evt_accordion")
    },

    expandit: function($targetHeader, $targetContent, config, useractivated, directclick) {
        this.transformHeader($targetHeader, config, "expand")
        $targetContent.slideDown(config.animatespeed, function() {
            config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), useractivated)
            if (config.postreveal == "gotourl" && directclick) {
                var targetLink = ($targetHeader.is("a")) ? $targetHeader.get(0) : $targetHeader.find('a:eq(0)').get(0)
                if (targetLink)
                    setTimeout(function() { location = targetLink.href }, 200)
            }
        })
    },

    collapseit: function($targetHeader, $targetContent, config, isuseractivated) {
        this.transformHeader($targetHeader, config, "collapse")
        $targetContent.slideUp(config.animatespeed, function() { config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), isuseractivated) })
    },

    transformHeader: function($targetHeader, config, state) {
        $targetHeader.addClass((state == "expand") ? config.cssclass.expand : config.cssclass.collapse)
		.removeClass((state == "expand") ? config.cssclass.collapse : config.cssclass.expand)
        if (config.htmlsetting.location == 'src') {
            $targetHeader = ($targetHeader.is("img")) ? $targetHeader : $targetHeader.find('img').eq(0)
            $targetHeader.attr('src', (state == "expand") ? config.htmlsetting.expand : config.htmlsetting.collapse)
        }
        else if (config.htmlsetting.location == "prefix")
            $targetHeader.find('.accordprefix').html((state == "expand") ? config.htmlsetting.expand : config.htmlsetting.collapse)
        else if (config.htmlsetting.location == "suffix")
            $targetHeader.find('.accordsuffix').html((state == "expand") ? config.htmlsetting.expand : config.htmlsetting.collapse)
    },

    urlparamselect: function(headerclass) {
        var result = window.location.search.match(new RegExp(headerclass + "=((\\d+)(,(\\d+))*)", "i"))
        if (result != null)
            result = RegExp.$1.split(',')
        return result
    },

    getCookie: function(Name) {
        var re = new RegExp(Name + "=[^;]+", "i")
        if (document.cookie.match(re))
            return document.cookie.match(re)[0].split("=")[1]
        return null
    },

    setCookie: function(name, value) {
        document.cookie = name + "=" + value + "; path=/"
    },

    init: function(config) {
        document.write('<style type="text/css">\n')
        document.write('.' + config.contentclass + '{display: none}\n')
        document.write('<\/style>')
        jQuery(document).ready(function($) {
            ddaccordion.urlparamselect(config.headerclass)
            var persistedheaders = ddaccordion.getCookie(config.headerclass)
            ddaccordion.contentclassname[config.headerclass] = config.contentclass
            config.cssclass = { collapse: config.toggleclass[0], expand: config.toggleclass[1] }
            config.revealtype = config.revealtype || "click"
            config.revealtype = config.revealtype.replace(/mouseover/i, "mouseenter")
            if (config.revealtype == "clickgo") {
                config.postreveal = "gotourl"
                config.revealtype = "click"
            }
            if (typeof config.togglehtml == "undefined")
                config.htmlsetting = { location: "none" }
            else
                config.htmlsetting = { location: config.togglehtml[0], collapse: config.togglehtml[1], expand: config.togglehtml[2] }
            config.oninit = (typeof config.oninit == "undefined") ? function() { } : config.oninit
            config.onopenclose = (typeof config.onopenclose == "undefined") ? function() { } : config.onopenclose
            var lastexpanded = {}
            var expandedindices = ddaccordion.urlparamselect(config.headerclass) || ((config.persiststate && persistedheaders != null) ? persistedheaders : config.defaultexpanded)
            if (typeof expandedindices == 'string')
                expandedindices = expandedindices.replace(/c/ig, '').split(',')
            var $subcontents = $('.' + config["contentclass"])
            if (expandedindices.length == 1 && expandedindices[0] == "-1")
                expandedindices = []
            if (config["collapseprev"] && expandedindices.length > 1)
                expandedindices = [expandedindices.pop()]
            if (config["onemustopen"] && expandedindices.length == 0)
                expandedindices = [0]
            $('.' + config["headerclass"]).each(function(index) {
                if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $(this).html() != "") {
                    $('<span class="accordprefix"></span>').prependTo(this)
                    $('<span class="accordsuffix"></span>').appendTo(this)
                }
                $(this).attr('headerindex', index + 'h')
                $subcontents.eq(index).attr('contentindex', index + 'c')
                var $subcontent = $subcontents.eq(index)
                var needle = (typeof expandedindices[0] == "number") ? index : index + ''
                if (jQuery.inArray(needle, expandedindices) != -1) {
                    if (config.animatedefault == false)
                        $subcontent.show()
                    ddaccordion.expandit($(this), $subcontent, config, false)
                    lastexpanded = { $header: $(this), $content: $subcontent }
                }
                else {
                    $subcontent.hide()
                    config.onopenclose($(this).get(0), parseInt($(this).attr('headerindex')), $subcontent.css('display'), false)
                    ddaccordion.transformHeader($(this), config, "collapse")
                }
            })
            $('.' + config["headerclass"]).bind("evt_accordion", function(e, isdirectclick) {
                var $subcontent = $subcontents.eq(parseInt($(this).attr('headerindex')))
                if ($subcontent.css('display') == "none") {
                    ddaccordion.expandit($(this), $subcontent, config, true, isdirectclick)
                    if (config["collapseprev"] && lastexpanded.$header && $(this).get(0) != lastexpanded.$header.get(0)) {
                        ddaccordion.collapseit(lastexpanded.$header, lastexpanded.$content, config, true)
                    }
                    lastexpanded = { $header: $(this), $content: $subcontent }
                }
                else if (!config["onemustopen"] || config["onemustopen"] && lastexpanded.$header && $(this).get(0) != lastexpanded.$header.get(0)) {
                    ddaccordion.collapseit($(this), $subcontent, config, true)
                }
            })
            $('.' + config["headerclass"]).bind(config.revealtype, function() {
                if (config.revealtype == "mouseenter") {
                    clearTimeout(config.revealdelay)
                    var headerindex = parseInt($(this).attr("headerindex"))
                    config.revealdelay = setTimeout(function() { ddaccordion.expandone(config["headerclass"], headerindex) }, config.mouseoverdelay || 0)
                }
                else {
                    $(this).trigger("evt_accordion", [true])
                    return false
                }
            })
            $('.' + config["headerclass"]).bind("mouseleave", function() {
                clearTimeout(config.revealdelay)
            })
            config.oninit($('.' + config["headerclass"]).get(), expandedindices)
            $(window).bind('unload', function() {
                $('.' + config["headerclass"]).unbind()
                var expandedindices = []
                $('.' + config["contentclass"] + ":visible").each(function(index) {
                    expandedindices.push($(this).attr('contentindex'))
                })
                if (config.persiststate == true && $('.' + config["headerclass"]).length > 0) {
                    expandedindices = (expandedindices.length == 0) ? '-1c' : expandedindices
                    ddaccordion.setCookie(config.headerclass, expandedindices)
                }
            })
        })
    }
}