var container = document.getElementById('rotation');
if(container){
	var elements = container.childNodes;
	if(elements.length){
		var cookie = readCookie("lastRand");
		if(!cookie) cookie = -1;
		var rand = Math.floor(Math.random()*elements.length);
		var tries = 0;
		while((!elements[rand] || elements[rand].nodeType != 1 || rand == cookie) && tries++<100) rand = Math.floor(Math.random()*elements.length);
		createCookie("lastRand", rand, 7);
		if(tries<100){
			for(var i=0;i<elements.length;i++){
				var el = elements[i];
				if(i != rand && el && el.nodeType == 1) el.style.display = "none";
			}
			container.style.display = "block";
		}
	}
}