I need to create a dashboard widget that will output Growl notifications when a member on a website goes online. The status of a member changes when he/she logs in and out of the website. It will be similar to the Delivery Status widget ( [login to view URL] ) but instead of tracking parcels, it will track the status of members on a website.
Here are the details:
1- User can choose which members to follow
2- The widget constantly checks for the status of the members
3- If a member goes online, a growl notification is sent to the user
Note: I already have PHP code that returns the status of a certain member.