1
I'm sure the answer will help alot of others who are using this script, and would like to see it pass values to a querystring as well.
Thanks Everyone,
Carlton
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- --------------------------------------------------------------------------
- <head>
- <script>
- //
- // Cookie Functions - Second Helping (21-Jan-96)
- // Written by: Bill Dortch, hIdaho Design <bdortch@netw.com>
- // The following functions are released to the public domain.
- //
- // The Second Helping version of the cookie functions dispenses with
- // my encode and decode functions, in favor of JavaScript's new built-in
- // escape and unescape functions, which do more complete encoding, and
- // which are probably much faster.
- //
- // The new version also extends the SetCookie function, though in
- // a backward-compatible manner, so if you used the First Helping of
- // cookie functions as they were written, you will not need to change any
- // code, unless you want to take advantage of the new capabilities.
- //
- // The following changes were made to SetCookie:
- //
- // 1. The expires parameter is now optional - that is, you can omit
- // it instead of passing it null to expire the cookie at the end
- // of the current session.
- //
- // 2. An optional path parameter has been added.
- //
- // 3. An optional domain parameter has been added.
- //
- // 4. An optional secure parameter has been added.
- //
- // For information on the significance of these parameters, and
- // and on cookies in general, please refer to the official cookie
- // spec, at:
- //
-
//
- //
- //
- // "Internal" function to return the decoded value of a cookie
- //
- function getCookieVal (offset) {
- var endstr = document.cookie.indexOf (";", offset);
- if (endstr == -1)
- endstr = document.cookie.length;
- return unescape(document.cookie.substring(offset, endstr));
- }
- //
- // Function to return the value of the cookie specified by "name".
- // name - String object containing the cookie name.
- // returns - String object containing the cookie value, or null if
- // the cookie does not exist.
- //
- function GetCookie (name) {
- var arg = name + "=";
- var alen = arg.length;
- var clen = document.cookie.length;
- var i = 0;
- while (i < clen) {
- var j = i + alen;
- if (document.cookie.substring(i, j) == arg)
- return getCookieVal (j);
- i = document.cookie.indexOf(" ", i) + 1;
- if (i == 0) break;
- }
- return null;
- }
- //
- // Function to create or update a cookie.
- // name - String object object containing the cookie name.
- // value - String object containing the cookie value. May contain
- // any valid string characters.
- // [expires] - Date object containing the expiration data of the cookie. If
- // omitted or null, expires the cookie at the end of the current session.
- // [path] - String object indicating the path for which the cookie is valid.
- // If omitted or null, uses the path of the calling document.
- // [domain] - String object indicating the domain for which the cookie is
- // valid. If omitted or null, uses the domain of the calling document.
- // [secure] - Boolean (true/false) value indicating whether cookie transmission
- // requires a secure channel (HTTPS).
- //
- // The first two parameters are required. The others, if supplied, must
- // be passed in the order listed above. To omit an unused optional field,
- // use null as a place holder. For example, to call SetCookie using name,
- // value and path, you would code:
- //
- // SetCookie ("myCookieName", "myCookieValue", null, "/");
- //
- // Note that trailing omitted parameters do not require a placeholder.
- //
- // To set a secure cookie for path "/myPath", that expires after the
- // current session, you might code:
- //
- // SetCookie (myCookieVar, cookieValueVar, null, "/myPath", null, true);
- //
- function SetCookie (name, value) {
- var argv = SetCookie.arguments;
- var argc = SetCookie.arguments.length;
- var expires = (argc > 2) ? argv[2] : null;
- var path = (argc > 3) ? argv[3] : null;
- var domain = (argc > 4) ? argv[4] : null;
- var secure = (argc > 5) ? argv[5] : false;
- document.cookie = name + "=" + escape (value) +
- ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
- ((path == null) ? "" : ("; path=" + path)) +
- ((domain == null) ? "" : ("; domain=" + domain)) +
- ((secure == true) ? "; secure" : "");
- }
- // Function to delete a cookie. (Sets expiration date to current date/time)
- // name - String object containing the cookie name
- //
- function DeleteCookie (name) {
- var exp = new Date();
- exp.setTime (exp.getTime() - 1); // This cookie is history
- var cval = GetCookie (name);
- document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
- }
- </script>
- </head>
- <FORM NAME="demoForm" onSubmit="
- if(demoForm.UserName.value.length != 0) {
- var expdate = new Date ();
- expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000));
- SetCookie('zip', demoForm.UserName.value, expdate);
- alert('Your Zip Code is ' + demoForm.UserName.value + '. Please Press The Continue Button To Enter');
- return false;
- } else {
- alert('Nothing Was Entered For Your Zip Code.');
- return false;
- }">
- <CENTER>
- Enter Your Zip Code: <INPUT TYPE="text" NAME="UserName" SIZE=12>
- <INPUT TYPE="submit" VALUE="Submit Your Zip Code">
- <INPUT TYPE="button" VALUE="Continue..."
- onClick="
- if(GetCookie('zip') == null)
- alert('You Forgot To Enter Your Zip Code')
- else
- window.open('http://www.YourDomain.com/index.php', '_top')">
- </FORM>
- </CENTER>
- I read the cookie with...
- <SCRIPT>document.write("Your Zip Code is <b>" + GetCookie('zip') + ".");</SCRIPT>
- --------------------------------------------------------------------------
