It's a very common requirement to show hint in textbox when empty
and when textbox gets focus hint goes away.now a days many websites
implemented showing hint.there are many ways to do that by jquery.

Do you have problem of receiving "Fatal error undefined function is_network_admin()" when you login to wordpress admin after updating WordPress.

when you process credit card payment the two
most sensitive inputs are taken from customer
are card number and card security code.you
will want to verify that the data entered
is valid before processing credit card payment.

It's a very common requirement to create different types of button and
it's click event handler dynamically in asp.net application.

There are many number of joomla template and extension providers in the competition. But some are quiet outstanding.. Here are some of the Joomla Templates and Extensions providers that attracts with best support.

Facebook Graph Api enables to post to any public page/profile wall
on behalf of any user.In the following codes i show how using
fb javascript sdk-

implementing video in asp.net or php pages is a great thing!.
there are a lot of players are available in web to show
video free.