Keep selected option (form/select) after refresh [duplicate]

Question

Possible Duplicate:
Html select option lost data after submit

I have a select menu that should keep the selected option after the page refresh. This is the example:

<select id="form_frame" name="frame" onchange="getData(this);"/>
   <option value="data1" selected="selected">Data 1</option>
   <option value="data2">Data 2</option>
</select>

Function getData just pull info to the user.

I'm using Smarty/php for the dynamic content.

Open to advice, thanks!

Answer 1

How it's done with local storage :

$(function() {
    if (localStorage.getItem('form_frame')) {
        $("#form_frame option").eq(localStorage.getItem('form_frame')).prop('selected', true);
    }

    $("#form_frame").on('change', function() {
        localStorage.setItem('form_frame', $('option:selected', this).index());
    });
});

FIDDLE