example11_simple_events - add simple event callbacks

e.g. onclick, onmouseover, onmouseout

show FuncyTag html string output
show Javascript source code
To Notice: If funcyTag property is an "on" method (e.g. onblur, onmouseover, etc...) then it will be an event callback on that object.

For example, the behavior when you move your mouse over any of these boxes, is controlled by this property which was added to the funcyTag: 
onmouseover: function(elem,evt) {
  elem.style.backgroundColor = 'black';
  elem.style.color = 'white';
}
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