【mouse】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.10.1.js'></script>
<script type='text/javascript'>
$(window).load(function(){
$( "#outer" ).mouseenter(function() {
$( ".csTip" ).append( "<div>Handler for .mouseenter() called.</div>" );
});
});
</script>
</head>
<body>
<table>
<th id='outer'>Agreed Bid <span class='csTip'>Hover me</span>
</th>
</table>
</body>
</html>
