/*
	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',ajaxCarregaFotos,false):window.attachEvent('onload',ajaxCarregaFotos);

var d=document, imgs = new Array(), zInterval = null, current=0, current2=0; pause=false, limit=0, limit2=0;

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;
	desc = d.getElementById('rotator').getElementsByTagName('p');
	for(i=1;i<desc.length;i++) desc[i].style.display = 'none';

    imgs[0].style.display = 'block';
	imgs[0].xOpacity = .99;

    desc[0].style.display = 'block';
	
	imgs2 = d.getElementById('rotator2').getElementsByTagName('img');
	for(i=1;i<imgs2.length;i++) imgs2[i].xOpacity = 0;
	desc2 = d.getElementById('rotator2').getElementsByTagName('p');
	for(i=1;i<desc2.length;i++) desc2[i].style.display = 'none';

    imgs2[0].style.display = 'block';
	imgs2[0].xOpacity = .99;

    desc2[0].style.display = 'block';

	setTimeout(so_xfade,7000);
}

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

      if (current != nIndex) {
	
        cOpacity = cOpacity - 0.05;
	  nOpacity = nOpacity + 0.05;

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

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

	cOpacity2 = imgs2[current2].xOpacity;
	nIndex2 = imgs2[current2+1]?current2+1:0;
	nOpacity2 = imgs2[nIndex2].xOpacity;
      
      if (current2 != nIndex2) {

	  cOpacity2 = cOpacity2 - 0.05;
	  nOpacity2 = nOpacity2 + 0.05;

	  imgs2[nIndex2].style.display = 'block';
	  imgs2[current2].xOpacity = cOpacity2;
	  imgs2[nIndex2].xOpacity = nOpacity2;

	  setOpacity(imgs2[current2]);
	  setOpacity(imgs2[nIndex2]);
      }

	if((cOpacity<=0)||(cOpacity2<=0))
	{
	    if (current != nIndex) imgs[current].style.display = 'none';
			
	    desc[current].style.display = 'none';
          desc[nIndex].style.display = 'block';

	    if (current2 != nIndex2) imgs2[current2].style.display = 'none';
			
	    desc2[current2].style.display = 'none';
          desc2[nIndex2].style.display = 'block';	    

	    current = nIndex;
	    current2 = nIndex2;

	    setTimeout(so_xfade,7000);
	}
	else
	{
		setTimeout(so_xfade,50);
	}

	function setOpacity(obj)
	{
		if(obj.xOpacity>0.99)
		{
			obj.xOpacity = 0.99;
			return;
		}

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

function ajaxCarregaFotos() {
  ajaxHTML('rotator', 'slideshow/slideshow/ajaxSlideshow.php?codlancamento=2');
  ajaxHTML('rotator2', 'slideshow/slideshow/ajaxSlideshow.php?codpromocao=2');
  //alert('funciona!');
  setTimeout(so_init,2000);
}