Question

Should ‘this’ in the following code not still refer to the DOM object selected by the MooTools selector?

$$('div').addEvent('click', function()
{
    var click1 = function(){$(this).setStyle('background', 'red');}
    click1();
});

Answer 1

You’ll need to do this instead to refer to the element you want:

click1.call(this);

Otherwise this refers to window inside the function, you can see the working version here.