"Make the window show up on top, you can't click away from it. Also clear all the fields when you first show the window."

"Ok, here's a static bar on the top of the page" as it disappears as you scroll. You can now no longer click anything else on the page. You said "can't click away" and it did show up on top. As a 30 year coder that never did any UI, this is this shit I run into constantly. I can create awesomely cool and fast back end stuff, and can create better UIs than I've ever been able to, but not knowing the nomenclature trips me up constantly.