Cookies

Using Cookies with Javascript

In the header part of the HTML document that uses cookies include the following:

<script src="http://condor.depaul.edu/~mschaefe/cookies.js">
</script>

(Textversion of the code, in case you want to modify it.)

You will then have two functions you can use for cookies.

• setCookie(name,value) creates a cookie of the given name and value. This cookie will expire after the current session ends.
• setCookie(name,value,days) same but will expire after so many days.
• getCookie(name) will return the value of the cookie with the given name. Will return null if cookie has expired or never been created.

Note: cookies are visible on the page on which they are set, pages in the same directory, or subdirectories of that directory. For example if a cookie is set on the page public_html/test/cookietest.html then a page in the directory public_html/ cannot see that cookie, but any web-page in public_html/test/ could.

For more advanced information see the Netscape Javascript Guide.