How to combine two form fields into one variable with jQuery?

Question

I'm pretty new to jQuery and I've been given a task I really have no idea how to complete. Here's the situation:

I have a form as follows:

Code:

<form action="search.php" method="get" id="cse-search-box">
  <input type="text" name="q" size="31"/>
  <select name="category">
    <option>One</option>
    <option>Two</option>
    <option>Three</option>
  </select>
  <select name="contributors">
    <option>One</option>
    <option>Two</option>
    <option>Three</option>
  </select>
  <input type="submit" name="sa" value="Search" />
</form>

The form is used to submit a query to google site search. The input field 'q' is the main search query.

I need to combine the user's choices in the 'category' and 'contributors' fields into one variable, named 'as_q', and insert this into a form field on submission.

Thanks in advance for any help

Answer 1

<script>
$('#cse-search-box').bind('submit', function(){
                        var category = $('[name=category]').val();
                        var contributors = $('[name=contributors]').val();
                        $('[name=q]').val(category+' '+contributors);
                      });
</script>

Have this piece of script after the <form> is declared (it's html, i'm not very sure if it is appropriate to use declare)