Só java script: Contador de quantas vezes visitou o site(com o nome do visitante)

script nome...
 
 <TITLE> titulo da pg </TITLE>
 </HEAD>
 <BODY BGCOLOR="#FFFFFF">
 <SCRIPT LANGUAGE = "JavaScript">
 var expDays = 30;
 var exp = new Date(); 
 exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
 function Who(info){
 		var VisitorName = GetCookie('VisitorName')
 		if (VisitorName == null) {
 			VisitorName = prompt("Qual é seu nome");
 			SetCookie ('VisitorName', VisitorName, exp);
 		}
 	return VisitorName;
 }
 function When(info){
 	 	var rightNow = new Date()
 		var WWHTime = 0;
 		WWHTime = GetCookie('WWhenH')
 		WWHTime = WWHTime * 1
 		var lastHereFormatting = new Date(WWHTime);	 		var intLastVisit = (lastHereFormatting.getYear() * 10000)+(lastHereFormatting.getMonth() * 100) + lastHereFormatting.getDate()
 	 var lastHereInDateFormat = "" + lastHereFormatting; 
 	 var dayOfWeek = lastHereInDateFormat.substring(0,3)
 	 var dateMonth = lastHereInDateFormat.substring(4,11)
 	 var timeOfDay = lastHereInDateFormat.substring(11,16)
 	 var year = lastHereInDateFormat.substring(23,25)
 	 var WWHText = dayOfWeek + ", " + dateMonth + " at " + timeOfDay	
 		SetCookie ("WWhenH", rightNow.getTime(), exp)
 	return WWHText;
 }
 function Count(info){
 		var WWHCount = GetCookie('WWHCount')
 		if (WWHCount == null) {
 			WWHCount = 0;
 		}
 		else{
 			WWHCount++;
 		}
 		SetCookie ('WWHCount', WWHCount, exp);
 
 	return WWHCount;
 }
 function set(){
 	VisitorName = prompt("Como vai você?");
 	SetCookie ('VisitorName', VisitorName, exp);
 	SetCookie ('WWHCount', 0, exp);
 	SetCookie ('WWhenH', 0, exp);
 }
 function getCookieVal (offset) { 
 	var endstr = document.cookie.indexOf (";", offset); 
 	if (endstr == -1) 
 		endstr = document.cookie.length; 
 		return unescape(document.cookie.substring(offset, endstr));
 }
 function GetCookie (name) { 
 	var arg = name + "="; 
 	var alen = arg.length; 
 	var clen = document.cookie.length; 
 	var i = 0; 
 	while (i < clen) { 
 	var j = i + alen; 
 	if (document.cookie.substring(i, j) == arg) 
 		return getCookieVal (j); 
 		i = document.cookie.indexOf(" ", i) + 1; 
 		if (i == 0) break; 
 	} 
 	return null;
 }
 function SetCookie (name, value) { 
 	var argv = SetCookie.arguments; 
 	var argc = SetCookie.arguments.length; 
 	var expires = (argc > 2) ? argv[2] : null; 
 	var path = (argc > 3) ? argv[3] : null; 
 	var domain = (argc > 4) ? argv[4] : null; 
 	var secure = (argc > 5) ? argv[5] : false; 
 	document.cookie = name + "=" + escape (value) + 
 	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
 	((path == null) ? "" : ("; path=" + path)) + 
 	((domain == null) ? "" : ("; domain=" + domain)) + 
 	((secure == true) ? "; secure" : "");
 }
 function DeleteCookie (name) { 
 	var exp = new Date(); 
 	exp.setTime (exp.getTime() - 1); 
 	var cval = GetCookie (name); 
 	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
 }
 </script>
 <script>
 	document.write("Olá!! " + Who() + ". Esta é a " + Count() + "º vez que visita nosso site.")
 </script>
 <a href="JavaScript:set()">Mudar nome.</a>

Contador de quantas vezes visitou o site(com o nome do visitante)

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