var adHrefs=new Array("http://www.pollenique.com/juvenescent.php","http://www.pollenique.com/silk.php");
var numAds=adHrefs.length;
function runSlideshow(prv,nxt)
{
	if(prv==numAds)
	{
		prv=0;
		nxt=1;
	}
	document.getElementById('ad_link').href=adHrefs[prv];
	setTimeout('transition(' + prv + ',' + nxt + ')',4000);
}
function setOpacity(element,value)
{
	document.getElementById(element).style.opacity=value/10;
	document.getElementById(element).style.filter='alpha(opacity=' + value*10 + ')';
}
function transition(prv,nxt)
{
	prv++;
	if(prv==(numAds + 1))
	{
		prv=1;
	}
	nxt++;
	if(nxt==(numAds +1))
	{
		nxt=1;
	}
	for(var a=0; a<=100; a++)
	{
		setTimeout('setOpacity("ad' + prv + '",' + (10-a/10) + ')',10*a);
	}
	for(var b=0; b<=100; b++)
	{
		setTimeout('setOpacity("ad' + nxt + '",' + b/10 + ')',10*b);
	}
	setTimeout('runSlideshow(' + prv + ',' + nxt + ')',1000);
}