Aniesh joseph wrote:
hi
I need to make a drop down in my web site in a registration form. From the
drop down user can select the his desired time zone. My question is, I want
to capture user's timezone using javascript and it will be shown as slected
when at the time of registration. I got a javascript, it will capture
only timezoneoffset. Is anyrelation between timezone offset and name?
Is ie available as table? Can anyne help me to d this or by suggest
another method ?
regards
joseph
Some time ago I asked a similar question and someone on this list was so
nice to provide me with the ECMAScript for the client side to pull out
the time zone bias.
The general code is this one
if(!isset($_COOKIE['GMT_bias'])) {
?>
<script type="text/javascript">
var Cookies = {};
/***
* @name = string, name of cookie
* @value = string, value of cookie
* @days = int, number of days before cookie expires
***/
Cookies.create = function (name, value, days) {
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
} else {
var expires = "";
}
document.cookie = name + "=" + value + expires + "; path=/";
this[name] = value;
}
var now = new Date();
Cookies.create("GMT_bias",now.getTimezoneOffset(),7);
window.location = "<?php echo $_SERVER['PHP_SELF'];?>";
</script>
<?php
} else {
echo $_COOKIE['GMT_bias'];
}
It will simply echo the bias in minutes, which should be good enough to
find out the client's time zone by name assuming you have some table for
lookups or can pull that from the server system (no idea how that works,
but other programming languages can do that. Since PHP can do anything
including cooking breakfast, there should be some way).
At least it gets you started.
David
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