jQuery Dialogr is a plugin that I made with the help of Ciro Anunciação. It adds more functions to jQuery UI Dialog. Along all normal functions, there are now more three:
Maximize: maximize the Dialogr to entire visible window area.
Minimize: Stick the Dialogr with position:fixed and disable other functions.
Restore: Returns to size and position of the Dialogr before it was minimized or maximized.
It's really easy to use:
$(#dialog).dialogr();
See more information at the plugin site: