Create a ordinary item to be triggered as a modal on page load. Can be used for different kind of "urgent" messages.
Reload this page for an example.
To apply the modal to a page, use the Content list-module in Sitevision.
Select the starting point that you want to show content from and select content area.
Select the advanced tab and paste the following code into the velocity template.
Add a html-module att the bottom of the page.