Sharepoint SearchBox Alt Text

How can I replace default alt text of sharepoint search box that displa开发者_开发技巧ys when hovering on it as shown in this picture:

Which property of this webpart should I change?

You can find details about search box customization in this post.

You can change the alt text with jQuery (SP 2010):

$("#s4-searcharea input).attr('title') = "<SOME NEW TEXT>";