Remember dropdown selection in cookie

[votan]

I need your help in doing some javascript.
The script needs to remember the selection you've made in a dropdown list in a cookie... and when revisiting the site it should automatically reselect the previously chosen option and make it available to RB for further usage.

Like I have three options for the dropdown list.
1) english
2) german
3) dutch

While english is the default, when selecting german, the selection should be stored in a cookie and so, when revisitng the site, the dropdown should automatically be set to "german" and the selected language needs to be available to RB, to directly display the page in the selected language.

I have absolutely no idea about JS, so any help is really appreciated.

[Janet]

Does Brent's wiki article Cookies by Javascript help at all?

[votan]

Already tried that..... but because of absolutely no JS capabilities, I couldn't get it modified the way to make it work.
And maybe someone can even do it with some ajax , so that selecting an option directyl submitts the chosen selection without the need to first click on a link to submit the selection?

[Brent]

Sorry about the slow response. I missed this thread then had to research and test for a while. My code assumes you have enableCookies pasted at the end.

Cls
Call enableCookies
Dim lang$(3)
lang$(1) = "English"
lang$(2) = "German"
lang$(3) = "Dutch"
lang$ = lang$(1)

[start]
GoSub [lang_picker]
HTML "<script type=""text/javascript""><!--
// always change lang on page load
document.body.onload = function() { chglang.click(); };
// get saved lang
var lang = getCookie('lang');
// if it was saved, change the list selection
if (lang) {
  for (var i = 0; i < langs.length; i++) {
    if (langs.options.text == lang) {
      langs.options.selected = true;
      break;
    }
  }
}
//--></script>"
Wait
' display list and button, set JS vars
[lang_picker]
ListBox #langs, lang$(), 1
#langs setid("langs")
Button #chglang, "Change", [change_lang]
#chglang setid("chglang")
HTML "<script type=""text/javascript""><!--
var langs = document.getElementById('langs');
var chglang = document.getElementById('chglang');
// auto-submit when selection changes
langs.onchange = function() { chglang.click(); };
//--></script>"
Return
' when the "change" button is clicked
[change_lang]
lang$ = #langs selection$()
Cls
Call enableCookies
HTML "<script type=""text/javascript""><!--
// save new selection
setCookie('lang', '"+lang$+"', '', days(30));
//--></script>"
GoSub [lang_picker]
#langs select(lang$)
print
print "I speak ";lang$
Wait

HTH

[votan]

Wow, cool, thank you! Will try to implement it into my code asap.
Is there maybe a way to do it without using a submit button at all?

[Brent]

I believe the only option you have, if you use my code, is to hide the button using CSS.

[kokenge]

If anyone is interested, Mozilla Firefox holds the cookies in a SQLite table here:
C:\Documents and Settings\dan\Application Data\Mozilla\Firefox\Profiles\r5nqzi25.default\cookies.sqlite

The name of the table is : moz_cookies

You need to use another browser like Opera to look at it because Firefox locks the DB.

If you don't have a SQLite management tool, you can generate a RB program to look at it using RBgen..

Just some info...
Have a great day..
Dan