Getting Information From Flex Repeater Template


I have a flex repeater that is loading a template based on a tag path parameter. I am looking for a way to grab the value of the tag parameter for whichever template that the user selects. i.e. I have 5 meters loaded into my flex repeater, if the user selects the second meter (which is the second instance), is there a way to figure out that this is the one they selected?