为什么我的jquery对话框不会完全fadeOut（）？

When I call fadeOut on my dialog it only does a partial fade and leaves the grey header area where the dialog title is. I've tried removing the title as well as the various attributes that disable the exit button in the upper right corner of the dialog, but that didn't work. As you'll see in my script below, I want the dialog to close after the form submission has been validated. When I call fadeOut on my dialog it only does a