if (document.getElementById && document.createElement && 
	typeof(document.cookie) == "string" && 
	document.cookie.indexOf("ekp.customerId") != -1) {

	var headMenu = document.getElementById("head-menu");
	if (headMenu) {
		var logoutItem = document.createElement("li");
		var logoutLink = document.createElement("a");
		logoutLink.href = "https://www.t-mobile.de/shop/td1_panther_trans/1,12234,10,00.html";
		logoutLink.appendChild(document.createTextNode("Logout"));
		logoutItem.appendChild(logoutLink);
		headMenu.appendChild(logoutItem);
	}
}