//preload obrazkow
function preload(imgObj,imgSrc)
{
 if (document.images)
 {
  eval(imgObj+' = new Image()');
  eval(imgObj+'.src = "'+imgSrc+'"');
 }
}

function changeImg(imgName,imgObj)
{
 try
 {
  if(document.getElementById(imgName))
  document.getElementById(imgName).src=eval(imgObj+".src");
  else
  imgName.src=eval(imgObj+".src");
 }
 catch(e)
 {}
}

function changeBgImg(imgName,imgObj)
{
 try
 {
  img=eval(imgObj+".src");
  if(document.getElementById(imgName))
  document.getElementById(imgName).style.backgroundImage='url('+img+')';
  else
  imgName.style.backgroundImage='url('+img+')';
 }
 catch(e)
 {}
}

preload("mn_home_off","graph/mn_home_off.gif");
preload("mn_home_ov","graph/mn_home_ov.gif");
preload("mn_idea_off","graph/mn_idea_off.gif");
preload("mn_idea_ov","graph/mn_idea_ov.gif");
preload("mn_przebieg_off","graph/mn_przebieg_off.gif");
preload("mn_przebieg_ov","graph/mn_przebieg_ov.gif");
preload("mn_galeria_off","graph/mn_galeria_off.gif");
preload("mn_galeria_ov","graph/mn_galeria_ov.gif");
preload("mn_dlaprasy_off","graph/mn_dlaprasy_off.gif");
preload("mn_dlaprasy_ov","graph/mn_dlaprasy_ov.gif");
preload("lg_zz_off","graph/lg_zz_off.gif");
preload("lg_zz_ov","graph/lg_zz_ov.gif");
preload("lg_rdlp_off","graph/lg_rdlp_off.gif");
preload("lg_rdlp_ov","graph/lg_rdlp_ov.gif");
preload("lg_nz_off","graph/lg_nz_off.gif");
preload("lg_nz_ov","graph/lg_nz_ov.gif");
preload("lg_uw_off","graph/lg_uw_off.gif");
preload("lg_uw_ov","graph/lg_uw_ov.gif");
preload("hd_homeTitle_1","graph/hd_ideaProgramu.gif");
preload("hd_homeTitle_1_ov","graph/hd_ideaProgramu_ov.gif");
preload("hd_homeTitle_2","graph/hd_MojeSilneDrzewo.gif");
preload("hd_homeTitle_2_ov","graph/hd_MojeSilneDrzewo_ov.gif");
preload("bg_ramka","graph/bg_ramka.gif");
preload("bg_ramka_ov","graph/bg_ramka_ov.gif");
preload("bt_serwisinformacyjny","graph/bt_serwisinformacyjny.gif");
preload("bt_serwisinformacyjny_ov","graph/bt_serwisinformacyjny_ov.gif");
preload("bt_serwisspolecznosciowy","graph/bt_serwisspolecznosciowy.gif");
preload("bt_serwisspolecznosciowy_ov","graph/bt_serwisspolecznosciowy_ov.gif");