How do I programmatically set the value of a select box element using JavaScript?

Question

I have the following HTML element:

Annual Leave&l

Answer 1

If using PHP you could try something like this:

$value = '11';
$first = '';
$second = '';
$third = '';
$fourth = '';

switch($value) {
            case '10' :
                $first = 'selected';
            break;
            case '11' :
                $second = 'selected';
            break;
            case '14' :
                $third = 'selected';
            break;
            case '17' :
                $fourth = 'selected';
            break;
        }

echo'

  Annual Leave
  Medical Leave
  Long Service
  Leave Without Pay
';