var tickspeed = 6000 //ticker speed in miliseconds (2000=2 seconds)
var displaymode = "auto" //displaymode ("auto" or "manual"). No need to modify as form at the bottom will control it, unless you wish to remove form.

if (document.getElementById) {
    document.write('<style type="text/css">\n')
    document.write('.gallerycontent{display:none;}\n')
    document.write('</style>\n')
}

var selectedDiv = 0
var totalDivs = 0

function getElementbyClass(classname) {
    partscollect = new Array()
    var inc = 0
    var alltags = document.all ? document.all.tags("DIV") : document.getElementsByTagName("*")
    for (i = 0; i < alltags.length; i++) {
        if (alltags[i].className == classname)
            partscollect[inc++] = alltags[i]
    }
}

function contractall() {
    var inc = 0
    while (partscollect[inc]) {
        partscollect[inc].style.display = "none"
        inc++
    }
}

function expandone() {
    var selectedDivObj = partscollect[selectedDiv]
    contractall()
    selectedDivObj.style.display = "block"
    if (document.gallerycontrol)
        temp.options[selectedDiv].selected = true
    selectedDiv = (selectedDiv < totalDivs - 1) ? selectedDiv + 1 : 0
    if (displaymode == "auto")
        autocontrolvar = setTimeout("expandone()", tickspeed)
}

function populatemenu() {
    temp = document.gallerycontrol.menu
    for (m = temp.options.length - 1; m > 0; m--)
        temp.options[m] = null
    for (i = 0; i < totalDivs; i++) {
        var thesubject = partscollect[i].getAttribute("subject")
        thesubject = (thesubject == "" || thesubject == null) ? "HTML Content " + (i + 1) : thesubject
        temp.options[i] = new Option(thesubject, "")
    }
    temp.options[0].selected = true
}

function manualcontrol(menuobj) {
    if (displaymode == "manual") {
        selectedDiv = menuobj
        expandone()
    }
}

function preparemode(themode) {
    displaymode = themode
    if (typeof autocontrolvar != "undefined")
        clearTimeout(autocontrolvar)
    if (themode == "auto") {
        document.gallerycontrol.menu.disabled = true
        autocontrolvar = setTimeout("expandone()", tickspeed)
    }
    else
        document.gallerycontrol.menu.disabled = false
}


function startgallery() {
    if (document.getElementById("controldiv")) //if it exists
        document.getElementById("controldiv").style.display = "block"
    getElementbyClass("gallerycontent")
    totalDivs = partscollect.length
    if (document.gallerycontrol) {
        populatemenu()
        if (document.gallerycontrol.mode) {
            for (i = 0; i < document.gallerycontrol.mode.length; i++) {
                if (document.gallerycontrol.mode[i].checked)
                    displaymode = document.gallerycontrol.mode[i].value
            }
        }
    }
    if (displaymode == "auto" && document.gallerycontrol)
        document.gallerycontrol.menu.disabled = true
    expandone()
}

if (window.addEventListener)
    window.addEventListener("load", startgallery, false)
else if (window.attachEvent)
    window.attachEvent("onload", startgallery)
else if (document.getElementById)
    window.onload = startgallery