<iframe name="IFrameTransaction" id="IFrameTransaction" frameborder="0" width="0" height="0" scrolling="no" allowTransparency="true"></iframe>So, if I use document.body.clientHeight, it might say 850. However, if the iframe line is not there, it will say 835. Has anyone found a way to include an iframe tag in a page without having it to take this default 15 pixels?