var langURI = "http://www.svetlozar.com/images/lang_en,,0";

if (document.images)
  {
   LANG1 = new Image(); LANG1.src = langURI + "0.gif";
   LANG2 = new Image(); LANG2.src = langURI + "1.gif";
  }

function LangOver (LANG) { LANG.src=LANG2.src; }
function LangOut  (LANG) { LANG.src=LANG1.src; }