【www.gdgbn.com--php函数】

在cookie里面查询值用到了indexof这个函数，下面end = document.cookie.indexof(";", offset);就这么简单。

 代码如下

*/
 function readck(name){
  var cookievalue = "";
  var search_s = name + "=";
  if(document.cookie.length > 0)
  {
   offset = document.cookie.indexof(search_s);
   if (offset != -1)
   {
    offset += search_s.length;
    end = document.cookie.indexof(";", offset);
    if (end == -1) end = document.cookie.length;
    cookievalue = unescape(document.cookie.substring(offset, end))
   }
  }
  return cookievalue;
 }

 function writeck(name, value, hours){
  var expire = "";
  var dm = getdomain();
  if(hours != null)
  {
   expire = new date((new date()).gettime() + hours * 3600000);
   expire = "; expires=" + expire.togmtstring();
  }
  document.cookie = name + "=" + escape(value) + expire + ";domain=" + dm + ";path=/; ";
 }
 </script>

本文来源：http://www.gdgbn.com/jiaocheng/29357/