Custom Positioning of 'Display Dialog/Folder Prompt' Window

Is it possible to customize the position of ‘display dialog’ window and the ‘folder prompt’ window’?
Many applications like TextWrangler have the the alert window below the Title bar.They also have the slide-down and slide-up effect. Can we achieve this in cocoa-applescript application? From a user’s perspective, I would like the dialog/folder prompt window to always appear in a fixed position(in front) of the
running application and below the title bar.


take a look at this topic

Thanks. That helped a lot