how you enable text search in safari iPhone 4

you use the search field and select it ..
macbook pro 17 inch - iPhone 4 Mac OS X (10.6.4)

thanks man,
iOS 4

you dont enable it..
in Safari, use the Google SearchBar, type in text youre searching for.. you will get a list, move your finger over the list in a scrolling motion, this will close the keyboard...
at the bottom you will see On This Page (# matches)
below that, select the Find _____ and it will take you to the webpage and highlight the text you are searching for and allow you to Find Next, etc.
hope this helps.
CustomBuiltSuperPC Windows 7 iPhone 4 32GB iOS 4 iPhone 3G 16GB iOS 3.1.3 Nextel i856

Thanks a lot!
Windows 7

Whats the point of this function???