Editor dialog is an object shared by all editor instances. It can be used to display any kind of data, ie. a html form
to get some user input.
Here are the methods of editor dialog

editor.dialog.open(title, content):
Opens the dialog with the given title and content in it.
In 6.x optional effect parameter referring to one of jQuery effects 'slideDown', 'fadeIn'
BUE.dialog.open(title, content, effect)

editor.dialog.close():
Closes the dialog.
In 6.x optional effect parameter referring to one of jQuery effects 'slideUp' or 'fadeOut'
BUE.dialog.close(effect)