Test Case Boilerplate

Fork this way...

HTML

<button id="toggle1">Action 1</button>
<button id="toggle2">Action 2</button>
<hr>
<img />

JavaScript

$(document).ready(function(){
    $('#toggle1').click(function(){
        $("img").attr({
            src: "https://www.google.de/logos/2012/earthday12-hp-b.jpg"
        });            
    });        
    $('#toggle2').click(function(){
        $("img").attr({
            src: ""
        });
        });
});