Cookies and Javascript.

I'm trying to figure how javascript handles cookies. Here are my questions:


- Is it possible for a javascript to read a cookie that was set trough php?

- How do you set a cookie in javascipt? Is there an aquivalent of the php function setcookie() ?

How do you read cookies with javascript? I know in php you just type a variable wich is the name of the cookie, is it the same in JS?


Finaly, if someone know a good, complete tutorial on cookies with JS, please tell me!

Thanks

Yes, javascript and php and asp and any cookies are interchangable, readable and settable by every language.

javascript:

document.cookie = "cookiename=cookievalue"

In javascript the retrieving of cookies is a bit difficult. What you actually get returned is a string representing every cookie. So to extract cookie info you need to substring it as such:

var cookieVal = document.cookie.substring(document.cookie.indexOf("cookiename") + 11, document.cookie.length)

Yup, it's crap, so you're better off using PHP/ASP to extract the cookie info.