document.getElementById('testdouble').setAttribute("style", "background-color: green"); document.getElementById('testdouble').setAttribute("style", "background-color: blue"); document.getElementById('testnormal').setAttribute("style", "background-color: green"); document.getElementById('testerror').setAttribute("style", "background-color: red"); document.getElementById('testlistnormal').setAttribute("style", "background-color: green"); document.getElementById('testlistabnormal').setAttribute("style", "background-color: green");

Click this with button 0 and the background turns green.

Click this with mouse button 0 and the background should turn green, but if you click this with mouse button 1 the background should turn blue.

Nothing should happen if you click this

Click this with button 1 or 2 and the background should turn green.

Click this with button 0 and the background should turn green.