This little plugin can be used in a search field, where you usually use a term like "Search here" in the input field and you need to reset the value when user puts focus on that field. If the user doesn't change the value it will put back the initial value when input field is out of focus. If the value is changed, the script will not erase the value every time the user puts the field in or out of foucs.
How to use it

Just include the jQuery framework and the reSetValue-plugin and you're ready for lift off:

$(document).ready(function() { $('input').reSetValue(); });

If you want to use it on more than one field, just type all the selectors comma separated—like this:

$('input, textarea, .search, #name').reSetValue();

Download jquery.reSetValue.js