var global_transitions = [ //array of IE transition strings
	"progid:DXImageTransform.Microsoft.Barn()",
	"progid:DXImageTransform.Microsoft.Blinds()",
	"progid:DXImageTransform.Microsoft.CheckerBoard()",
	"progid:DXImageTransform.Microsoft.Fade()",
	"progid:DXImageTransform.Microsoft.GradientWipe()",
	"progid:DXImageTransform.Microsoft.Inset()",
	"progid:DXImageTransform.Microsoft.Iris()",
	"progid:DXImageTransform.Microsoft.Pixelate(maxSquare=15)",
	"progid:DXImageTransform.Microsoft.RadialWipe()",
	"progid:DXImageTransform.Microsoft.RandomBars()",
	"progid:DXImageTransform.Microsoft.RandomDissolve()",
	"progid:DXImageTransform.Microsoft.Slide()",
	"progid:DXImageTransform.Microsoft.Spiral()",
	"progid:DXImageTransform.Microsoft.Stretch()",
	"progid:DXImageTransform.Microsoft.Strips()",
	"progid:DXImageTransform.Microsoft.Wheel()",
	"progid:DXImageTransform.Microsoft.Zigzag()"
]

function flashyslideshow(setting) {
    this.wrapperid = setting.wrapperid
    this.imagearray = setting.imagearray
    this.pause = setting.pause
    this.transduration = setting.transduration / 3000 //convert from miliseconds to seconds unit to pass into el.filters.play()
    this.currentimg = 0
    var preloadimages = [] //temp array to preload images
    for (var i = 0; i < this.imagearray.length; i++) {
        preloadimages[i] = new Image()
        preloadimages[i].src = this.imagearray[i][0]
    }
    document.write('<div id="' + this.wrapperid + '" class="' + setting.wrapperclass + '"><div id="' + this.wrapperid + '_inner" style="width:100%">' + this.getSlideHTML(this.currentimg) + '</div></div>')
    var effectindex = Math.floor(Math.random() * global_transitions.length) //randomly pick a transition to utilize
    var contentdiv = document.getElementById(this.wrapperid + "_inner")
    if (contentdiv.filters) { //if the filters[] collection is defined on element (only in IE)
        contentdiv.style.filter = global_transitions[effectindex] //define transition on element
        this.pause += setting.transduration //add transition time to pause
    }
    this.filtersupport = (contentdiv.filters && contentdiv.filters.length > 0) ? true : false //test if element supports transitions and has one defined
    var slideshow = this
    flashyslideshow.addEvent(contentdiv, function () { slideshow.isMouseover = 1 }, "mouseover")
    flashyslideshow.addEvent(contentdiv, function () { slideshow.isMouseover = 0 }, "mouseout")
    setInterval(function () { slideshow.rotate() }, this.pause)
}

flashyslideshow.addEvent = function (target, functionref, tasktype) {
    if (target.addEventListener)
        target.addEventListener(tasktype, functionref, false);
    else if (target.attachEvent)
        target.attachEvent('on' + tasktype, function () { return functionref.call(target, window.event) });
},

flashyslideshow.setopacity = function (el, degree) { //sets opacity of an element (FF and non IE browsers only)
    if (typeof el.style.opacity != "undefined")
        el.style.opacity = degree
    else
        el.style.MozOpacity = degree
    el.currentopacity = degree
},

flashyslideshow.prototype.getSlideHTML = function (index) {
    var slideHTML = (this.imagearray[index][1]) ? '<a href="' + this.imagearray[index][1] + '" target="' + this.imagearray[index][2] + '">\n' : '' //hyperlink slide?
    slideHTML += '<img width="340px" height="210px" src="images/' + this.imagearray[index][0] + '" />'
    slideHTML += (this.imagearray[index][1]) ? '</a><br />' : '<br />'
    slideHTML += (this.imagearray[index][3]) ? this.imagearray[index][3] : '' //text description?
    return slideHTML //return HTML for the slide at the specified index
}

flashyslideshow.prototype.rotate = function () {
    var contentdiv = document.getElementById(this.wrapperid + "_inner")
    if (this.isMouseover) { //if mouse is over slideshow
        return
    }
    this.currentimg = (this.currentimg < this.imagearray.length - 1) ? this.currentimg + 1 : 0
    if (this.filtersupport) {
        contentdiv.filters[0].apply()
    }
    else {
        flashyslideshow.setopacity(contentdiv, 0)
    }
    contentdiv.innerHTML = this.getSlideHTML(this.currentimg)
    if (this.filtersupport) {
        contentdiv.filters[0].play(this.transduration)
    }
    else {
        contentdiv.fadetimer = setInterval(function () {
            if (contentdiv.currentopacity < 1)
                flashyslideshow.setopacity(contentdiv, contentdiv.currentopacity + 0.1)
            else
                clearInterval(contentdiv.fadetimer)
        }, 50) //end setInterval
    }
}