To draw a border

Hello

I have a template which loads thums form XML file, i want to modify the thumbs to have a border around each one and alfa rollover effect.

function createThubmnail(thumbURL) {
 thumbsHolder.attachMovie("itemPhoto", "itemPhoto"+photoN, photoN);
 eval("thumbsHolder.itemPhoto"+photoN).picture.picture.loadMovie(thumbURL);
 eval("thumbsHolder.itemPhoto"+photoN).d_w = widthThumb;
 eval("thumbsHolder.itemPhoto"+photoN).d_h = heightThumb;
 eval("thumbsHolder.itemPhoto"+photoN).viewMode = "FILL_ALL";
 eval("thumbsHolder.itemPhoto"+photoN).resizeSmallImages = true;
 eval("thumbsHolder.itemPhoto"+photoN).positionImg = "C";
 eval("thumbsHolder.itemPhoto"+photoN).itemN = photoN;
 eval("thumbsHolder.itemPhoto"+photoN)._alpha = 100;
 var tmpPhotoPageN = photoN%(N_height_colThumbnail*N_colsPage);
 //trace(tmpPhotoPageN);
 eval("thumbsHolder.itemPhoto"+photoN)._x = widthThumb*(tmpPhotoPageN%N_colsPage);
 eval("thumbsHolder.itemPhoto"+photoN)._y = heightThumb*Math.floor(tmpPhotoPageN/N_colsPage);
 eval("thumbsHolder.itemPhoto"+photoN)._x += (widthThumb*N_colsPage)*Math.floor(photoN/(N_height_colThumbnail*N_colsPage));
 eval("thumbsHolder.itemPhoto"+photoN).onPress = function() {
  trace(this.itemN);
  this._parent._parent.slideshow.loadImageItem(this.itemN);
 };

Thanks!