/*
        Image Cross Fade Redux
        Version 1.0
        Last revision: 02.15.2006
        steve@slayeroffice.com

        Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html
*/

window.addEventListener?window.addEventListener('load',so_init,false):window.attachEvent('onload',so_init);

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;

function so_init()
{
        if(!d.getElementById || !d.createElement)return;

        css = d.createElement('link');
        css.setAttribute('href','slideshow2.css');
        css.setAttribute('rel','stylesheet');
        css.setAttribute('type','text/css');
        d.getElementsByTagName('head')[0].appendChild(css);

        imgs = d.getElementById('rotator').getElementsByTagName('img');
        for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
        imgs[0].style.display = 'block';
        imgs[0].xOpacity = .99;

        setTimeout(so_xfade,3000);
}

function so_xfade()
{
        cOpacity = imgs[current].xOpacity;
        nIndex = imgs[current+1]?current+1:0;
        nOpacity = imgs[nIndex].xOpacity;

        cOpacity-=.05;
        nOpacity+=.05;

        imgs[nIndex].style.display = 'block';
        imgs[current].xOpacity = cOpacity;
        imgs[nIndex].xOpacity = nOpacity;

        setOpacity(imgs[current]);
        setOpacity(imgs[nIndex]);

        if(cOpacity<=0)
        {
                imgs[current].style.display = 'none';
                current = nIndex;
                setTimeout(so_xfade,3000);
        }
        else
        {
                setTimeout(so_xfade,50);
        }

        function setOpacity(obj)
        {
                if(obj.xOpacity>.99)
                {
                        obj.xOpacity = .99;
                        return;
                }

                obj.style.opacity = obj.xOpacity;
                obj.style.MozOpacity = obj.xOpacity;
                obj.style.filter = 'alpha(opacity=' + (obj.xOpacity*100) + ')';
        }
}