if (document.images) { 
  left = new PreloadImage('saltmine_jcorrea/images/left_off.gif');
  left_on = new PreloadImage('saltmine_jcorrea/images/left_on.gif');
  logo = new PreloadImage('saltmine_jcorrea/images/logo_off.gif');
  logo_on = new PreloadImage('saltmine_jcorrea/images/logo_on.gif');
  launch = new PreloadImage('saltmine_jcorrea/images/launch_off.gif');
  launch_on = new PreloadImage('saltmine_jcorrea/images/launch_on.gif');
  publix = new PreloadImage('saltmine_jcorrea/images/MAINPLAZA02hialeahsquare.gif');
}