Search text area + Customize

Hi All,

I would like to customize the text in the search box. By default, if we observe the search textbox it will display "Search this site"(or something else like "Search..."). Instead of this I wanted to display my custom text(like "My Search Area..." - this is not a custom scope).

Please help me on this issue & Let me know if you have queries.

Thanks In Advance,
SPUser.