Demo of focus event using JQuery

HTML

Name:<input type=text name=fname id=t1><div id=d1 style="background-color:yellow;">Enter your Details</div>

Email: <input type=text name=fname id=t2>

jquery

<script>
$(document).ready(function() {
$('#t1').focus(function(){
$('#d1').html('Enter your name');
});

$('#t2').focus(function(){
$('#d1').html('Enter your email');
});

})
</script>