//»ñµÃcookieÖµ
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))
    }
    else return ""
  }else{
    return ""
  }
}