function setCookie(name, value, expireHours) {
    var cookieString = name + "=" + escape(value);
    if (expireHours > 0) {
        var date = new Date();
        date.setTime(date.getTime + expireHours * 3600 * 1000);
        cookieString = cookieString + "; expire=" + date.toGMTString();
    }
    document.cookie = cookieString;
}

function getCookie(name){
      var strcookie=document.cookie;
      var resultList=new Array();
      var arrcookie=strcookie.split("; ");
      for(var i=0;i<arrcookie.length;i++){
            var arr=arrcookie[i].split("=");
            if(arr[0]==name)resultList.unshift(arr[1]);
      }
      return resultList;
  }

  function getcookie(name) {
      var strcookie = document.cookie;
      var resultList = new Array();
      var arrcookie = strcookie.split("; ");
      for (var i = 0; i < arrcookie.length; i++) {
          var arr = arrcookie[i].split("=");
          if (arr[0] == name) resultList.push(arr[1]);
      }
      return resultList;
  }

  function delCookie(name) {
      var date = new Date();
      date.setTime(date.getTime() - 10000);
      document.cookie = name + "=a; expires=" + date.toGMTString();
  }