Un Codigo Que Me Gusta

<script>
<!--
// City Web

var caution = false

function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "")
if (!caution || (name + "=" + escape(value)).length <= 4000)
document·cookie = curCookie
else
if (confirm("Cookie exceeds 4KB and will be cut!"))
document·cookie = curCookie
}

function getCookie(name) {
var prefix = name + "="
var cookieStartIndex = document·cookie.indexOf(prefix)
if (cookieStartIndex == -1)
return null
var cookieEndIndex = document·cookie.indexOf(";", cookieStartIndex + prefix.length)
if (cookieEndIndex == -1)
cookieEndIndex = document·cookie.length
return unescape(document·cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))
}

function deleteCookie(name, path, domain) {
if (getCookie(name)) {
document·cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT"
}
}

function fixDate(date) {
var base = new Date(0)
var skew = base.getTime()
if (skew > 0)
date.setTime(date.getTime() - skew)
}

var now = new Date()
fixDate(now)
now.setTime(now.getTime() + 31 * 24 * 60 * 60 * 1000)
var name = getCookie("name")
if (!name)
name = prompt(" Hola, Por Favor Teclea tu Nombre :", "Solo se te pedira una vez")
setCookie("name", name, now)
document.write("Hola " + name + ", Bienvenido a Nuestra comunidad...")
//-->
 </script>