var fadebgcolor = "white"
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

function fadeshow(theimages, fadewidth, fadeheight, borderwidth, bordercolor, 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 (displayorder == "R")
   {
      theimages.sort(function() { return 0.5 - Math.random(); })
   }
   this.theimages = theimages;
   this.imageborder = parseInt(borderwidth);
   this.imagebordercolor = bordercolor;
   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]
      this.postimages[p].alt = theimages[p][3];  //"Santa Clause"

   }

   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 + '" 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 src="' + this.postimages[picindex].src + '" alt="' + this.postimages[picindex].alt + '" style="border: solid ' + this.imageborder + 'px' + ' ' + this.imagebordercolor + ';">';
   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 (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 + "])", 40);
      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)
   { //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
      var cacheobj = this;
      var crossobjcontainer = iebrowser ? iebrowser["master" + this.slideshowid] : document.getElementById("master" + this.slideshowid);
      crossobjcontainer.onmouseover = function() { cacheobj.mouseovercheck = 1 }
      crossobjcontainer.onmouseout = function() { cacheobj.mouseovercheck = 0 }
   }
   this.rotateimage();
}