JS Cookie存取值

JS Cookie存取值

<script type="text/javascript">
//Cookie取值
function readCookie (name)
{
var cookieValue = "";
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;
cookieValue = unescape (document.cookie.substring (offset, end))
}
}
return cookieValue;
}
//Cookie设置值
function writeCookie (name, value, hours)
{
var expire = "";
if (hours != null)
{
expire = new Date ((new Date ()).getTime () + hours * 3600000);
expire = "; expires=" + expire.toGMTString ();
}
document.cookie = name + "=" + escape (value) + expire;
}
//调用设置
writeCookie ("myCookie", "my name", 24);
//调用取值
alert (readCookie ("myCookie"));
</script>