[Plugin: Ultimate Coming Soon Page] Want email box to go blank when clicked

Hi:

Took me a while to get Feedburner to work for this plugin so that visitors can regiter to be notified when my site is up and running, but everything’s good now.

How can I get it so that when visitors click on the email box that say “Enter Your Email” the words will disappear and they can start typing without having to delete those words. Small thing, but wondering if it can be done. Thank.