HELP- Need to make xml scroller appear visible on mouseOver

Hi,

I have used the xml gallery tutorial and have images scrolling at the bottom and playing at the top.

Does any1 know how to make the bottom scroller visible only when the mouse is over? I tried this code:
/////////////////////////////////////////////
scroller.container._visible = true;
scroller.container.onRollOver = function()
{
scroller.container._visible = true;
}
scroller.onRollOut = function()
{
scroller.container._visible = false;
}
/////////////////////////////////////////////

When the file loads, the scroller images still come up but when I put my mouse over, they dissappear.

I am trying to make the scroller be invisible when the file loads and only when my mouse is over it appears.

I think because on the Kirupa tutorial, the scroller already has a function which maybe causing the problem. I am not sure.

Can any1 help? please???