We have an existing PHP application that uses a mixture of XML, Javascript and IFRAME as a control panel for the user to work with a database. We need to have this functionality updated to use AJAX type controls instead similar to http://www.dhtmlgoodies.com The goal is to provide a seamless user experience without any form post delays as well as increase the users control panel space by using modal windows to display data. There will be some database SQL work as well in regards to...