/***********************************************
* Ultimate Fade-In Slideshow (v1.5): © 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.
***********************************************/

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder, slideshowclass, fadebgcolor)
{
    this.slideshowclass = slideshowclass ? slideshowclass : "";
    this.fadebgcolor = fadebgcolor ? fadebgcolor : "none";
    this.pausecheck = pause;
    this.mouseovercheck = 0;
    this.delay = delay;
    this.degree = 10; //initial opacity degree (10%)
    this.curimageindex = 0;
    this.nextimageindex = 1;
    fadeshow.fadearray[fadeshow.fadearray.length] = this;
    this.slideshowid = fadeshow.fadearray.length - 1;
    this.canvasbase = "canvas" + this.slideshowid;
    this.curcanvas = this.canvasbase + "_0";
    if (typeof displayorder != "undefined" )
    {
        if ( displayorder == 'R' )
        {
            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 ( fadeshow.iebrowser && fadeshow.dom || fadeshow.dom ) //if IE5+ or modern browsers (ie: Firefox)
    {
        document.write('<div class="'+ this.slideshowclass + '" 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);-moz-opacity:10;-khtml-opacity:10;background-color:'+ this.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);-moz-opacity:10;background-color:' + this.fadebgcolor + '"></div></div>');
    }
    else
    {
        document.write('<div class="'+ this.slideshowclass + '"><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>');
    }

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

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

fadeshow.dom = document.getElementById; //modern dom browsers
fadeshow.iebrowser = document.all;
fadeshow.fadearray = new Array(); //array to cache fadeshow instances
fadeshow.fadeclear = new Array(); //array to cache corresponding clearinterval pointers

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

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 (typeof(obj.tempobj.style.MozOpacity) != "undefined")
        {
            obj.tempobj.style.MozOpacity = obj.degree / 101;
        }
        else if (typeof(obj.tempobj.style.KhtmlOpacity) != "undefined")
        {
            obj.tempobj.style.KhtmlOpacity=obj.degree/100;
        }
        else if (typeof(obj.tempobj.style.opacity) != "undefined")
        {
            obj.tempobj.style.opacity = obj.degree / 101;
        }
    }
    else
    {
        clearInterval(fadeshow.fadeclear[obj.slideshowid]);
        obj.nextcanvas = (obj.curcanvas==obj.canvasbase+"_0") ? obj.canvasbase+"_0" : obj.canvasbase+"_1";
        obj.tempobj = fadeshow.iebrowser? fadeshow.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("fadeshow.fadearray[" + obj.slideshowid + "].rotateimage()", obj.delay );
    }
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

fadeshow.prototype.populateslide = function(picobj, picindex)
{
    var slideHTML = "";

    // if no image exists for the second image, show first again
    if (!this.theimages[picindex])
    {
        if (this.theimages[picindex-1])
        {
            picindex = picindex-1;
        }
    }

    if ( !this.theimages || ! this.theimages[picindex])
    {
        return;
    }

    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 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) //if pause onMouseover enabled, cache object
    {
        var cacheobj = this;
    }

    if (this.mouseovercheck == 1)
    {
        setTimeout(function(){cacheobj.rotateimage()}, 100);
    }
    else if (fadeshow.iebrowser && fadeshow.dom || fadeshow.dom)
    {
        this.resetit();
        var crossobj = this.tempobj=fadeshow.iebrowser ? fadeshow.iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
        crossobj.style.zIndex++;
        fadeshow.fadeclear[this.slideshowid] = setInterval("fadepic(fadeshow.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 = fadeshow.iebrowser? fadeshow.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;
    }
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

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

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////