/***********************************************

* Ultimate Fade-In Slideshow (v1.51): © Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.

//[properties
1)IMAGES_ARRAY_NAME: The name of the image array (inside script of Step 1) containing the images to display for this slideshow (ie: "fadeimages". 
2)slideshow_width: The width of the slideshow container (implied in px). Set it to accommodate the largest image within the slideshow. 
3)slideshow_height: The height of the slideshow container (implied in px). Set it to accommodate the largest image within the slideshow. 
4)borderwidth: The width of the border, such as 0, 1 etc. 
5)delay: Delay between image change, in milliseconds (ie: 3000 = 3 seconds). 
6)pause: Specify whether slideshow should pause (not rotate) while the mouse is over it. 1=yes, 0=no. 
7)optionalRandomOrder: An optional parameter specifying whether to "randomize" the display order of the images. Set it to "R" to randomize, or remove this parameter (unset) to not. 

***********************************************/
  
var fadebgcolor="white"

////NO need to edit beyond here/////////////
 
var fadearray=new Array() //array to cache fadeshow instances
var fadeclear=new Array() //array to cache corresponding clearinterval pointers
 
var dom=(document.getElementById) //modern dom browsers
var iebrowser=document.all


/* Added stop and start functionality for Accessibility requirements **/
/* Added on 18/06/2009 by HW ******************************************/
/* Look for bGlobalOverridePlay in this JS file for other changes made*/
var bGlobalOverridePlay = true;
function pauseBannerRotator() {
    bGlobalOverridePlay = false;
    document.getElementById('hypBannerRotatorPause').style.display = "none";
    document.getElementById('hypBannerRotatorPlay').style.display = "";
    document.getElementById('hypBannerRotatorPlay').focus();
}
function playBannerRotator() {
    bGlobalOverridePlay = true;
    document.getElementById('hypBannerRotatorPause').style.display = "";
    document.getElementById('hypBannerRotatorPause').focus();
    document.getElementById('hypBannerRotatorPlay').style.display = "none";    
}
/**********************************************************************/
/**********************************************************************/


function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder) {
    this.pausecheck = pause
    this.mouseovercheck = 0
    this.delay = delay
    this.degree = 10 //initial opacity degree (10%)
    this.curimageindex = 0
    this.nextimageindex = 1
    fadearray[fadearray.length] = this
    this.slideshowid = fadearray.length - 1
    this.canvasbase = "canvas" + this.slideshowid
    this.curcanvas = this.canvasbase + "_0"
    if (typeof displayorder != "undefined")
        theimages.sort(function() { return 0.5 - Math.random(); }) //thanks to Mike (aka Mwinter) :)
    this.theimages = theimages
    this.imageborder = parseInt(borderwidth)
    this.postimages = new Array() //preload images
    for (p = 0; p < theimages.length; p++) {
        this.postimages[p] = new Image()
        this.postimages[p].src = theimages[p][0]
    }

    var fadewidth = fadewidth + this.imageborder * 2
    var fadeheight = fadeheight + this.imageborder * 2

    if (iebrowser && dom || dom) //if IE5+ or modern browsers (ie: Firefox)
        document.write('<div id="master' + this.slideshowid + '" style="position:relative;width:' + fadewidth + 'px;height:' + fadeheight + 'px;overflow:hidden;"><div id="' + this.canvasbase + '_0" style="position:absolute;width:' + fadewidth + 'px;height:' + fadeheight + 'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:' + fadebgcolor + '"></div><div id="' + this.canvasbase + '_1" style="position:absolute;width:' + fadewidth + 'px;height:' + fadeheight + 'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:' + fadebgcolor + '"></div></div>')
    else
        document.write('<div><img name="defaultslide' + this.slideshowid + '" alt="" src="' + this.postimages[0].src + '"></div>')

    if (iebrowser && dom || dom) //if IE5+ or modern browsers such as Firefox
        this.startit()
    else {
        this.curimageindex++
        setInterval("fadearray[" + this.slideshowid + "].rotateimage()", this.delay)
    }
}

function fadepic(obj) {
    if (obj.degree < 100) {
        obj.degree += 10
        if (obj.tempobj.filters && obj.tempobj.filters[0]) {
            if (typeof obj.tempobj.filters[0].opacity == "number") //if IE6+
                obj.tempobj.filters[0].opacity = obj.degree
            else //else if IE5.5-
                obj.tempobj.style.filter = "alpha(opacity=" + obj.degree + ")"
        }
        else if (obj.tempobj.style.MozOpacity)
            obj.tempobj.style.MozOpacity = obj.degree / 101
        else if (obj.tempobj.style.KhtmlOpacity)
            obj.tempobj.style.KhtmlOpacity = obj.degree / 100
        else if (obj.tempobj.style.opacity && !obj.tempobj.filters)
            obj.tempobj.style.opacity = obj.degree / 101
    }
    else {
        clearInterval(fadeclear[obj.slideshowid])
        obj.nextcanvas = (obj.curcanvas == obj.canvasbase + "_0") ? obj.canvasbase + "_0" : obj.canvasbase + "_1"
        obj.tempobj = iebrowser ? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas)
        obj.populateslide(obj.tempobj, obj.nextimageindex)
        obj.nextimageindex = (obj.nextimageindex < obj.postimages.length - 1) ? obj.nextimageindex + 1 : 0
        setTimeout("fadearray[" + obj.slideshowid + "].rotateimage()", obj.delay)
    }
}

fadeshow.prototype.populateslide = function(picobj, picindex) {
    var slideHTML = ""
    if (this.theimages[picindex][1] != "") //if associated link exists for image
        slideHTML = '<a href="' + this.theimages[picindex][1] + '" target="' + this.theimages[picindex][2] + '">'
    slideHTML += '<img alt="" src="' + this.postimages[picindex].src + '" border="' + this.imageborder + 'px">'
    if (this.theimages[picindex][1] != "") //if associated link exists for image
        slideHTML += '</a>'
    picobj.innerHTML = slideHTML
}


fadeshow.prototype.rotateimage = function() {
    if (this.pausecheck == 1 || !bGlobalOverridePlay) //if pause onMouseover enabled, cache object
        var cacheobj = this
    if (this.mouseovercheck == 1 || !bGlobalOverridePlay)
        setTimeout(function() { cacheobj.rotateimage() }, 100)
    else if (iebrowser && dom || dom) {
        this.resetit()
        var crossobj = this.tempobj = iebrowser ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
        crossobj.style.zIndex++
        fadeclear[this.slideshowid] = setInterval("fadepic(fadearray[" + this.slideshowid + "])", 50)
        this.curcanvas = (this.curcanvas == this.canvasbase + "_0") ? this.canvasbase + "_1" : this.canvasbase + "_0"
    }
    else {
        var ns4imgobj = document.images['defaultslide' + this.slideshowid]
        ns4imgobj.src = this.postimages[this.curimageindex].src
    }
    this.curimageindex = (this.curimageindex < this.postimages.length - 1) ? this.curimageindex + 1 : 0
}

fadeshow.prototype.resetit = function() {
    this.degree = 10
    var crossobj = iebrowser ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
    if (crossobj.filters && crossobj.filters[0]) {
        if (typeof crossobj.filters[0].opacity == "number") //if IE6+
            crossobj.filters(0).opacity = this.degree
        else //else if IE5.5-
            crossobj.style.filter = "alpha(opacity=" + this.degree + ")"
    }
    else if (crossobj.style.MozOpacity)
        crossobj.style.MozOpacity = this.degree / 101
    else if (crossobj.style.KhtmlOpacity)
        crossobj.style.KhtmlOpacity = this.degree / 100
    else if (crossobj.style.opacity && !crossobj.filters)
        crossobj.style.opacity = this.degree / 101
}


fadeshow.prototype.startit = function() {
    var crossobj = iebrowser ? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas)
    this.populateslide(crossobj, this.curimageindex)
    if (this.pausecheck == 1 || !bGlobalOverridePlay) { //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
        var cacheobj = this
        var crossobjcontainer = iebrowser ? iebrowser["master" + this.slideshowid] : document.getElementById("master" + this.slideshowid)
        if (!bGlobalOverridePlay)
            cacheobj.mouseovercheck = 1;
        else {
            cacheobj.mouseovercheck = 0;            
            crossobjcontainer.onmouseover = function() { cacheobj.mouseovercheck = 1 }
            crossobjcontainer.onmouseout = function() { cacheobj.mouseovercheck = 0 }
        }
    }
    this.rotateimage()
}