CIS 119 Switch statement

The code

The HTML:

<p><button id="cow">Cow</button></p>
<p><button id="pig">Pig</button></p>
<p><button id="duck">Duck</button></p>
<p><button id="fox">Fox</button></p>

The JavaScript:

function showSound() {
    var animal = this.id;
    switch (animal) {
    case 'cow':
        alert('Mooo');
        break;
    case 'pig':
        alert('Oink');
        break;
    case 'duck':
        alert('Quack');
        break;
    default:
        alert("I haven't a clue. What does the " + animal + " say?");
    }
}

function init() {
    document.getElementById('cow').onclick = showSound;
    document.getElementById('pig').onclick = showSound;
    document.getElementById('duck').onclick = showSound;
    document.getElementById('fox').onclick = showSound;
}

window.onload = init;