Automatically update other sections of page

Hi, I've created a very advanced web form which acts as an application and I am in desperate need of help. The application works great, and it utilizes components such as combo boxes, checkboxes and radio buttons. It is split into sections using iframes, meaning that each section is scrollable to display the full repitoire of available information. The problem I have is every time a piece of information is updated, whether it is a selection or an alteration, my application needs to reset a number of times to reflect the change from the top down. The refresh allows my application to show the most current scenario, but the problem is there is a cascading effect and one click can result in three or four refreshes so that all the iframes are up to date. What I'm wanting to know is whether there is a way that this information could be updated without the need of the refresh? I'd need to update information above where the change took place, and some of the changes are simply text (ie an integer calculation could be different depending on which radio button is selected). Is this possible? I want to be able to click on a checkbox and the information related to that record is displayed below automatically without reloading or refreshing. Please help! Thanks, Michael.