> [snip] > will php allow a user to enter field on a form, and compute aresult > based on > the field, without having to reload the entire form, or will i need > ajax... > [/snip] > > You will only need JavaScript. That statement may not be true. For example the computation might have to involve a database or web service lookup. > Remember, JavaScript is client-side, PHP is server-side. That is true, but to ensure accessibility, one should comply the other, not replace it. There are a lot of PHP/Ajax frameworks out there: http://ajaxpatterns.org/PHP_Ajax_Frameworks Without knowing what you want to do, all we can give you is guesswork. -- Chris Heilmann Book: http://www.beginningjavascript.com Blog: http://www.wait-till-i.com Writing: http://icant.co.uk/