function switchcontent(className, filtertag) {
    this.className = className
    this.collapsePrev = false
    this.persistType = "none"
    this.filter_content_tag = (typeof filtertag != "undefined") ? filtertag.toLowerCase() : ""
}
switchcontent.prototype.setStatus = function(openHTML, closeHTML) {
    this.statusOpen = openHTML
    this.statusClosed = closeHTML
}
switchcontent.prototype.setColor = function(openColor, closeColor) {
    this.colorOpen = openColor
    this.colorClosed = closeColor
}
switchcontent.prototype.setPersist = function(bool, days) {
    if (bool == true) {
        if (typeof days == "undefined")
            this.persistType = "session"
        else {
            this.persistType = "days"
            this.persistDays = parseInt(days)
        }
    }
    else
        this.persistType = "none"
}
switchcontent.prototype.collapsePrevious = function(bool) {
    this.collapsePrev = bool
}
switchcontent.prototype.sweepToggle = function(setting) {
    if (typeof this.headers != "undefined" && this.headers.length > 0) {
        for (var i = 0; i < this.headers.length; i++) {
            if (setting == "expand")
                this.expandcontent(this.headers[i])
            else if (setting == "contract")
                this.contractcontent(this.headers[i])
        }
    }
}
switchcontent.prototype.defaultExpanded = function() {
    var expandedindices = []
    for (var i = 0; (!this.collapsePrev && i < arguments.length) || (this.collapsePrev && i == 0); i++)
        expandedindices[expandedindices.length] = arguments[i]
    this.expandedindices = expandedindices.join(",")
}
switchcontent.prototype.togglecolor = function(header, status) {
    if (typeof this.colorOpen != "undefined")
        header.style.color = status
}
switchcontent.prototype.togglestatus = function(header, status) {
    if (typeof this.statusOpen != "undefined")
        header.firstChild.innerHTML = status
}
switchcontent.prototype.contractcontent = function(header) {
    var innercontent = document.getElementById(header.id.replace("-title", ""))
    innercontent.style.display = "none"
    this.togglestatus(header, this.statusClosed)
    this.togglecolor(header, this.colorClosed)
}
switchcontent.prototype.expandcontent = function(header) {
    var innercontent = document.getElementById(header.id.replace("-title", ""))
    innercontent.style.display = "block"
    this.togglestatus(header, this.statusOpen)
    this.togglecolor(header, this.colorOpen)
}
switchcontent.prototype.toggledisplay = function(header) {
    var innercontent = document.getElementById(header.id.replace("-title", ""))
    if (innercontent.style.display == "block")
        this.contractcontent(header)
    else {
        this.expandcontent(header)
        if (this.collapsePrev && typeof this.prevHeader != "undefined" && this.prevHeader.id != header.id)
            this.contractcontent(this.prevHeader)
    }
    if (this.collapsePrev)
        this.prevHeader = header
}
switchcontent.prototype.collectElementbyClass = function(classname) {
    var classnameRE = new RegExp("(^|\\s+)" + classname + "($|\\s+)", "i")
    this.headers = [], this.innercontents = []
    if (this.filter_content_tag != "")
        var allelements = document.getElementsByTagName(this.filter_content_tag)
    else
        var allelements = document.all ? document.all : document.getElementsByTagName("*")
    for (var i = 0; i < allelements.length; i++) {
        if (typeof allelements[i].className == "string" && allelements[i].className.search(classnameRE) != -1) {
            if (document.getElementById(allelements[i].id + "-title") != null) {
                this.headers[this.headers.length] = document.getElementById(allelements[i].id + "-title")
                this.innercontents[this.innercontents.length] = allelements[i]
            }
        }
    }
}
switchcontent.prototype.init = function() {
    var instanceOf = this
    this.collectElementbyClass(this.className)
    if (this.headers.length == 0)
        return
    if (this.persistType == "days" && (parseInt(switchcontent.getCookie(this.className + "_dtrack")) != this.persistDays))
        switchcontent.setCookie(this.className + "_d", "", -1)
    var opencontents_ids = (this.persistType == "session" && switchcontent.getCookie(this.className) != "") ? ',' + switchcontent.getCookie(this.className) + ',' : (this.persistType == "days" && switchcontent.getCookie(this.className + "_d") != "") ? ',' + switchcontent.getCookie(this.className + "_d") + ',' : (this.expandedindices) ? ',' + this.expandedindices + ',' : ""
    for (var i = 0; i < this.headers.length; i++) {
        if (typeof this.statusOpen != "undefined")
            this.headers[i].innerHTML = '<span class="status"></span>' + this.headers[i].innerHTML
        if (opencontents_ids.indexOf(',' + i + ',') != -1) {
            this.expandcontent(this.headers[i])
            if (this.collapsePrev)
                this.prevHeader = this.headers[i]
        }
        else
            this.contractcontent(this.headers[i])
        this.headers[i].onclick = function() { instanceOf.toggledisplay(this) }
    }
    switchcontent.dotask(window, function() { instanceOf.rememberpluscleanup() }, "unload")
}
switchcontent.prototype.rememberpluscleanup = function() {
    var opencontents = new Array("none")
    for (var i = 0; i < this.innercontents.length; i++) {
        if (this.persistType != "none" && this.innercontents[i].style.display == "block" && (!this.collapsePrev || (this.collapsePrev && opencontents.length < 2)))
            opencontents[opencontents.length] = i
        this.headers[i].onclick = null
    }
    if (opencontents.length > 1)
        opencontents.shift()
    if (typeof this.statusOpen != "undefined")
        this.statusOpen = this.statusClosed = null
    if (this.persistType == "session")
        switchcontent.setCookie(this.className, opencontents.join(","))
    else if (this.persistType == "days" && typeof this.persistDays == "number") {
        switchcontent.setCookie(this.className + "_d", opencontents.join(","), this.persistDays)
        switchcontent.setCookie(this.className + "_dtrack", this.persistDays, this.persistDays)
    }
}
switchcontent.dotask = function(target, functionref, tasktype) {
    var tasktype = (window.addEventListener) ? tasktype : "on" + tasktype
    if (target.addEventListener)
        target.addEventListener(tasktype, functionref, false)
    else if (target.attachEvent)
        target.attachEvent(tasktype, functionref)
}
switchcontent.getCookie = function(Name) {
    var re = new RegExp(Name + "=[^;]+", "i");
    if (document.cookie.match(re))
        return document.cookie.match(re)[0].split("=")[1]
    return ""
}
switchcontent.setCookie = function(name, value, days) {
    if (typeof days != "undefined") {
        var expireDate = new Date()
        var expstring = expireDate.setDate(expireDate.getDate() + days)
        document.cookie = name + "=" + value + "; expires=" + expireDate.toGMTString()
    }
    else
        document.cookie = name + "=" + value
}