javascript get text at mose postion

Question

How can I get text at mouse position? I have now some like this

document.body.onmousemove = function(){
    //todo:Get text at mouse position
}

Answer 1

One way of doing so is using [PrototypeJs][1]

Try this one let me know if there is any problem

$(document.body).observe('click', respondToClick);

function respondToClick(event) {
  var element = event.element();
  var source = element.innerHTML;
}