cookies w/ javascript

[gibbittynyc]

I have a combo drop down box and I want to be able to store the users input from this in a cookie so that when the user returns, the data will already be filled in. Is there a way to do this using javascript?

Thanks in Advance

[DrDaMour]

generic cookie setting functions


function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

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 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" : "");
}


and you set cookie by

var expdate.setTime (expdate.getTime() + 60*(24 * 60 * 60 * 1000)) // dead in 2 months
SetCookie ("cookiename", "cookievalue",expdate);

then you get the cookie by

var value = GetCookie("cookiename")
value now has your cookie value or null if it doesn't exist