It wouldn’t be to difficult to do.

1. Setup your function that adds the options
2. Set the interval to call that function every 3 seconds

There is no real way to save the options other than a cookie, you could also look into some sort of hash magic but that becomes difficult to work cross browser (see jquery history plugin).

I also can’t seemt to find an easy way to serialize the options into text for storage in a cookie, so you probably would want to append to your cookie as you add each item. You will want to use common functions to turn your Objects in JSON and vice versca, (search for toJson).

So you really want something like this:

function updateOptions(){
   //This would be your dynamic call, probably ajax request
   var newOption = new Option('name', 'value');
   var s = $('#select')[0];
   var l = s.length;
   s[l] = newOption;
   //some predefined method to get the cookie
   //and convert it back into an object
   var cookie = eval('('+getCookie('optionSvr')+')');
  //add new option
   cookie.push(newOption);
   setCookie('optionSvr',toJSON(cookie));
}
//Run every 3 seconds
setInterval('updateOptions()',3000);

Example (minus the cookie stuff)

Is this something i can use to do that?
Do you know if there is any way to save the options so it doesn’t go blank on reload of the page?

Thank you any answer.