Resize Workflow Window

All,

I've created a custom form that I'd like to present from within an incident, much like reassign or attach subtasks using the embedded Dialog Models section under Intreraction Setup. I'm wondering if there's a way to resize that window, as when launched it's quite large for the form I've created. I've tried using the javascript resizeTo function, which works but only resizes the internal form not the entire window. It's not really a big deal but thought I'd ask if anyone knows how to do this.

I'm