function hodiny() { 
var dt = new Date();
var def = dt.getTimezoneOffset()/60;
var gmt = dt.getHours() + def;
var HH = dt.getHours();
var MM = dt.getMinutes();
var SS = dt.getSeconds();
var cas = ((HH<10) ? "0" : "" ) + HH;
cas+= ((MM<10) ? ":0" : ":" ) + MM;
cas+= ((SS<10) ? ":0" : ":" ) + SS;
var UTC = (gmt>=24) ? (gmt-24) : gmt;
var hod =(UTC+1);
if (hod<0) hod=24+hod;
sekund = (hod*3600) +  MM*60 + SS; 
it = parseInt(sekund/86.4);
vypis = it;
if (it<10) vypis = "00" + it;
if (it>9 && it<100) vypis = "0" + it;
if (it==1000) vypis = "000";
digitcas.innerHTML = "@" + vypis;
setTimeout("hodiny()", 1000);
}