<html>
<head>
<script>
function flip(s){
var sNew = ""
for (i = s.length-1; i>=0; i--) {
sNew = sNew + s.substr(i,1)}
return(sNew)}
</script></head>
<body>
<div id = divX onmouseover = "divX.innerText = flip(divX.innerText)">
What does this script do?</div>
</body></html>