function setCookie (name, value, expires, path, domain, secure) {
      document.cookie = name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}

function getCookie(name) {
  var cookie = " " + document.cookie;
  var search = " " + name + "=";
  var setStr = null;
  var offset = 0;
  var end = 0;
  if (cookie.length > 0) {
    offset = cookie.indexOf(search);
    if (offset != -1) {
      offset += search.length;
      end = cookie.indexOf(";", offset)
      if (end == -1) {
        end = cookie.length;
      }
      setStr = unescape(cookie.substring(offset, end));
    }
  }
  return(setStr);
}
var user = getCookie('stauserid');
if (user==null){
  var date  = new Date;
  date.setMonth(date.getMonth()+3);
  var userid = Math.round(Math.random()*100000)+100;
  setCookie('stauserid',userid,date,'/','.skytechair.ru'); 
};