Xml image grid

1

im having trouble creating columns for this image grid can anyone help?

function thumbextra(k, xcontained, containedxml) {
    xcontained.createEmptyMovieClip("t"+k,xcontained.getNextHighestDepth());
    tlistener = new Object();

    tlistener.onLoadInit = function(target_mc) {
        if (k<col) {
            target_mc._x = (target_mc._width+5)*k;
            num++;
        } else {
            damp=2
            target_mc._y = (target_mc._height+5)*damp;
            if (k<6) {
                target_mc._x = (target_mc._width+5)*nun;
                nun++;
                
            }
        }
        target_mc.pictureValue = k;

    };
    image_mcl = new MovieClipLoader();
    image_mcl.addListener(tlistener);
    image_mcl.loadClip(containedxml,"_root.titlesss.extrascroll.container.t"+k);
}