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来访统计的JS代码

2015-09-13 14:10 751 查看
<script language="JavaScript">

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() + 365 * 24 * 60 * 60 * 1000)
  var visits = getCookie("counter")
   if (!visits)
    visits = 1
  else
    visits = parseInt(visits) + 1
setCookie("counter", visits, now)
document.write("帅哥,欢迎您的第" + visits + "次光临!")

</script>
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