JavaScript设置Cookie、获取Cookie和清除Cookie
function getCookieValue(objName){
//获取指定名称的Cookie的值
var arrayCookie = document.cookie.split(";");
for(var i = 0;i < arrayCookie.length;i ++){
var temp = arrayCookie[i].split("=");
if(temp[0].indexOf(objName)>=0){
return unescape(temp[1]);
}
}
}
function setCookie(objName,objValue,objHours){
//设置Cookie
var str = objName + "=" + escape(objValue);
if(objHours > 0){
var date = new Date();
var ms = objHours*3600*1000;
date.setTime(date.getTime() + ms);
str += "; expires=" + date.toGMTString();
}
document.cookie = str;
}
function clearCookie(objName){
var date = new Date();
date.setTime (date.getTime() - 1);
var objValue = getCookieValue (objName);
document.cookie = objName + "=" + objValue + "; expires="+ date.toGMTString();
}