[RESOLVED] Caption on thumb rollover + XML / as3

I'm not sure if this is the right place - I think it is.
I really really really really need help!
thanks so much in advance!

I'm building a header for a webpage. I have thumbnails that when you click on the thumbs the image changes. The big image also cycles through on it's own. I want a caption to show up when you roll over the thumbnails, like a preview.



var targetCaption:int;
caption_txt.htmlText = String(xmlData.pic.captiontext[targetCaption]);

The text shows up but only the first one. I want it to change on rollover

The thing i was doing wrong was so so so stupid:
i don't know if this makes sence but this is what worked:
var targetCaption:int =0;

THIS line was key duh:
targetCaption = event.currentTarget.pictureValue;

caption_txt.htmlText ="";
caption_txt.htmlText = String(xmlData.pic.captiontext[targetCaption]);