Selecting an option using jquery - select box -

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i'm trying update selected option in select box using jquery. html follows:

<select id="selectbox">     <option value="1">value 1</option>     <option value="2">value 2</option>     <option value="3">value 3</option>     <option value="4">value 4</option> </select>

using jquery, how can change selected option default (first option) option value 3 (third option)?

thanks in advance

use .val()

$(document).ready(function() {    $('#selectbox').val('3') });

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