southprojects DHTML Extra Widget - Catch page leaving or reload

Catch page leaving or reload

You can use this feature to warn a user who indicates readiness to leave the current page by clicking a link or using javascript that there are still unsaved changes on the page.
This feature does not work with Opera.
Simple call next function:

    southprojects.Utils.warnUnload('your message')

To remove warning call:

    southprojects.Utils.unwarnUnload()

Example:
Link to leave page