function WriteCook(name, value, expires, path, domain)
{
	if(expires)
	{
		var d1 = new Date();
		var d2 = d1.getTime()+expires*86400*1000;
		d1.setTime(d2);
	}
	document.cookie=
	name+"="+escape(value)+
	((expires) ? "; expires="+d1.toGMTString() : "")+
	((path) ? "; path="+path : "")+
	((domain) ? "; domain="+domain : "");
}

function ReadCook(name)
{
	var cook=document.cookie;
	if(cook.indexOf(name+"=")!=-1)
	{
		cook=cook.substr(cook.indexOf(name+"="));
		var regexp=new RegExp(name+"=([^;]+)");
		var array=regexp.exec(cook);
		return array[1];
	}
	else return false;
}

onload=function()
{
	ucook=ReadCook("d41d8cd98f00b204e9800998ecf8427e");
	switch(ucook)
	{
		case false: document.getElementById("der").innerHTML = "17";
		            WriteCook("d41d8cd98f00b204e9800998ecf8427e", "66a7c1d5cb75ef2542524d888fd32f4a", 1000);
			    break;
		case "66a7c1d5cb75ef2542524d888fd32f4a":
			    document.getElementById("der").innerHTML = "16";
			    WriteCook("d41d8cd98f00b204e9800998ecf8427e", "51a6d96331d5eaa300358c7a0faf168d", 1000);
			    break;
		case "51a6d96331d5eaa300358c7a0faf168d":
			    document.getElementById("der").innerHTML = "13";
			    WriteCook("d41d8cd98f00b204e9800998ecf8427e", "b0771132ab2531a40c9941375ed8e290", 1000);
			    break;
		case "b0771132ab2531a40c9941375ed8e290":
			    document.getElementById("der").innerHTML = "11";
			    WriteCook("d41d8cd98f00b204e9800998ecf8427e", "4d095eeac8ed659b1ce69dcef32ed0dc", 1000);
			    break;
		case "4d095eeac8ed659b1ce69dcef32ed0dc":
			    document.getElementById("der").innerHTML = "8";
			    WriteCook("d41d8cd98f00b204e9800998ecf8427e", "4d095eeac8ed659b1ce69dcef32ed0dc", 1000);
			    break;
	}
}