Earnie, If you have a simple form as follows: <form> <input type="text" id="alpha" class="check-on-change" /> <input type="text" id="beta" class="check-on-change" /> <input type="text" id="gamma" /> </form> to do a simple auto population of the third field based on the sum of the first two with jquery would look like this: <javascript> $(document).ready(function() { $('.check-on-change').change(show_sum); }); function show_sum() { var a = $('#alpha").val(); var b = $('#beta").val(); $('#gamma').val(a + b); } </javascript> In jQuery, you access DOM elements with "selectors", which are strings that follow the exact same syntax as CSS, but wrapped in "$(...)". Once you have accessed them like this, you can perform functions on them such as .val() with no params to /get/ the current form field value, or val(x) with a parameter to /set/ the value. the first bit, "$(document).ready(function(){...});, set's everything up to work after the DOM has been loaded. see http://docs.jquery.com/Core, and in particular the section on the left of that page titled "API Reference" for lots more info. Seth Earnie Boyd wrote:
I have a form in which after two fields (x and y) are entered I need default values for other fields on the form to be set. I have limited experience with javascript and none with jQuery. I have searched for examples but I can't find any for this scenario. Can someone please point me in the right direction?
TIA, -- Earnie -- http://r-feed.com/ -- http://for-my-kids.com/ -- http://www.4offer.biz/ -- http://give-me-an-offer.com/