function f_thumbpos(fv_idlist) {
	if (fv_idlist.indexOf(',') > 0) {
		fv_idlist_split = fv_idlist.split(',');
		for (var fv_idlist_loop = 0; fv_idlist_loop < fv_idlist_split.length; fv_idlist_loop++) {
			if (fv_idlist_split[fv_idlist_loop].length > 0) {
				v_img_width = document.getElementById("img" + fv_idlist_split[fv_idlist_loop]).scrollWidth;
				if (v_img_width > 0) {
					document.getElementById("item" + fv_idlist_split[fv_idlist_loop]).style.marginLeft = ((220/2) - (v_img_width/2)) + "px";
				}
			}
		}
	}
	v_thumbpos_timer = setTimeout("f_thumbpos('" + fv_idlist + "');",50);
}