function preload()
{
 if (document.images)
 {
  preload_image_object = new Image();
  image_url = new Array();
  image_url[0] = "/img/menu_about_h.png";
  image_url[1] = "/img/menu_domeny_h.png";
  image_url[2] = "/img/menu_hosting_h.png";
  image_url[3] = "/img/menu_kreatywni_h.png";
  image_url[4] = "/img/menu_produkty_h.png";
  image_url[5] = "/img/menu_promocje_h.png";
  image_url[6] = "/img/top_doku_h.png";
  image_url[7] = "/img/top_poczta_h.png";
  image_url[8] = "/img/top_zarz_h.png";
  var i = 0;
  for(i=0; i<=8; i++) 
   preload_image_object.src = image_url[i];
 }
}