Marquee effect Using external Xml file

Hi,

I have tried but could not get the marquee effect from external XML file.I have tried using AS works fine but how to invoke the effect via Xml file into flash. I have the flash file attached here .

The process is as follows

a) I have a 720 * 30 file in which i have added 2 layers.First layer is where i have the
dynamic text box which has a instance name “tickerBox” .
b) second layer has actions where i hav included the Actionscript as follows

============================================
var tickerText = “Metamorphosis You … Only Better is a team of highly trained, certified skincare and makeup artists dedicated to the diversity of beauty. With our unique Skin Analyzer Magnifier and our top leading skincare lines, we work from the ground up to bring out your natural beauty.”;
tickerBox.text = tickerText;
function scroll()
{
displayTS.text = tickerBox.hscroll;
tickerBox.hscroll += 1;
if (tickerBox.hscroll >= tickerBox.maxhscroll) tickerBox.hscroll = 0;
}
function startTicker()
{
setInterval(scroll, 20);
}

marquee text is as follows
Metamorphosis You … Only Better is a team of highly trained, certified skincare and makeup artists dedicated to the diversity of beauty. With our unique Skin Analyzer Magnifier and our top leading skincare lines, we work from the ground up to bring out your natural beauty.

The ticker effects works fine in here . But i want the text of the mrquee to be added in a Xml file where in i can edit & replace the text from the xml for updation of the text later on.