function toggleVisibility(id, NNtype, IEtype, WC3type) {
    if (document.getElementById) {
        eval("document.getElementById(id).style.visibility = \"" + WC3type + "\"");
    } else {
        if (document.layers) {
            document.layers[id].visibility = NNtype;
        } else {
            if (document.all) {
                eval("document.all." + id + ".style.visibility = \"" + IEtype + "\"");
}}}}


function setCookie(name, value, Days, path) {
	var expires = new Date();
    expires.setTime(expires.getTime() + 1000*60*60*24*Days);
	 document.cookie = name + "=" + escape(value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + ((path == null) ? "" : ("; path=" + path))
}
 
function getCookie(name) {
		var search = name + "=";	
		if (document.cookie.length > 0) {
			offset = document.cookie.indexOf(search);
 			if (offset != -1) {
				offset += search.length;
				end = document.cookie.indexOf(";", offset);
 				if (end == -1) {
					end = document.cookie.length;
				}
				return unescape(document.cookie.substring(offset, end));
}}}	

function itestKysely() {
        var iTest_cookie = getCookie("taunusstein");

        //setCookie after one check.
        setCookie("taunusstein", "True", 120, "/");
            //show kysely if it hasn't been shown
        //Added test to do kysely to only 100% of the visitors
        if (iTest_cookie == null && (Math.random()<1) ) {
			code = "<div id='itestLayer' style='margin-left:40px;  width:460px; height:250px; z-index:100'>";
			code += "<table width='100%' border=0 cellspacing=0 cellpadding=0>";
			code += "<tr valign=top><td width=17% height=201>";
			code += "<div align=left><img src='http://www.taunusstein.de/fileadmin/tsst/img/umfrage_hahn.jpg' width=460 height=250 border=0 usemap=#itestMap>";
			code += "<map name=itestMap>";
			code += "<area shape=rect coords='379,15,447,29' href=# onClick=toggleVisibility('itestLayer','hidden','hidden','hidden')>";
			code += "<area shape=rect coords='269,192,379,222' href=# onClick=toggleVisibility('itestLayer','hidden','hidden','hidden')>";
			code += "<area shape=rect coords='79,192,189,222' href=http://www.taunusstein.de/index.php?id=1606&tx_ttnews[tt_news]=1880&tx_ttnews[backPid]=1743&cHash=4efa3333eb";
			code += " target=_top onClick=toggleVisibility('itestLayer','hidden','hidden','hidden')>";
			code += "<\/map><\/div><\/td><\/tr><\/table><\/div>";
			return code;
		} 
		 else {
			code = "";
			return code; 
		}
	}