function doIt()
{	var max;
	max=parseInt("21");
	var lolli;
	var neuWert;
	var ablauf = new Date();
   	var infuenfTagen = ablauf.getTime() + (555 * 24 * 60 * 60 * 1000);
   	ablauf.setTime(infuenfTagen);
   	
	bilder=new Array("annaHalf.gif","maxHalf.gif","friedrichHalf.gif","martinHalf.gif","noraHalf.gif","nineHalf.gif","knofoHalf.gif","arneHalf.gif","antjeHalf.gif","danielleHalf.gif","juliaHalf.gif","ulliHalf.gif","bolleHalf.gif","manneHalf.gif","nikkiHalf.gif","steffiHalf.gif","maeckiHalf.gif","andreHalf.gif","phillipHalf.gif","clemiHalf.gif","weisiHalf.gif","jennyHalf.gif");
	if(!(document.cookie))
	{
		lolli=Math.round(Math.random()*max);
		document.cookie=lolli+"; expires=" + ablauf.toGMTString();
	}
	else
	{
		neuWert=document.cookie;
		lolli=parseInt(neuWert);
		neuWert=lolli;
		if(neuWert==max)
		{
			neuWert=0;
		}
		else
		{
			neuWert++;
		}
		document.cookie=neuWert+"; expires=" + ablauf.toGMTString();
	}
	document.bildLinks.src="pics/"+bilder[lolli];
	delete(lolli);
	delete(neuWert);
}