img = new Array("img/pm_install.gif","img/pm_install_om.gif","img/pm_ready.gif","img/pm_ready_om.gif","img/pm_imp.gif","img/pm_imp_om.gif","img/pm_edit.gif","img/pm_edit_om.gif","img/pm_vary.gif","img/pm_vary_om.gif","img/pm_ex.gif","img/pm_ex_om.gif","img/pm_dvd.gif","img/pm_dvd_om.gif");
bfImg = new Array();
for(i=0; i<img.length; i++) {
  bfImg[i] = new Image();
  bfImg[i].src = img[i];
}