Handlers on onmouseover/onclink:

inner1 gets deleted on mouseover thru innerHTML=msg

inner2 gets deleted on mouseover thru Node.replaceChild

inner3 gets deleted on click thru innerHTML=msg

inner4 gets deleted on click thru Node.replaceChild

Handlers added through js:

inner5 gets deleted on mouseover thru innerHTML=msg

inner6 gets deleted on mouseover thru Node.replaceChild

inner7 gets deleted on click thru innerHTML=msg

inner8 gets deleted on click thru Node.replaceChild