I am building an iphone webapp and have a page with an input field. I'd like the field to scroll up to just above the virtual keyboard when it shows up. I've tried putting a scrollTo(x,y) on the input focus event (i.e. just before the keyboard shows up), but when I start typing the page scrolls up again (presumably based on the default mobile safari behavior). I also tried setting keypress event handlers, but preventing propagation of those events just disabled the keyboard, although it did prevent scrolling.
Is there any way to force the page to be at a particular position (with the input field just above the keyboard) when the virtual keyboard shows up, and not have it move when i resume typing?