/* Javascript Document */

var imgs = new Array();
var current, t1, t2, t3;

function startSlideshow(id)
{
    if(!document.getElementById || !document.createElement) return;
	
	clearTimeout(t1);
	clearTimeout(t2);
	clearTimeout(t3);
	
	current = 0;
	
    imgs = document.getElementById(id).getElementsByTagName('img');
    for(i = 1; i < imgs.length; i++)
	{
        imgs[i].xOpacity = 0;
	}
    imgs[0].style.display = 'block';
    imgs[0].xOpacity = .99;
	
    setTimeout(fadeSlides, 2000);
}

function fadeSlides()
{
    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;
        t2 = setTimeout(fadeSlides, 2000);
    }
    else
    {
        t3 = setTimeout(fadeSlides, 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) + ')';
    }
}