function clock() {
var t = new Date();
var h = t.getHours();
var m = t.getMinutes();
var s = t.getSeconds();
var hours = t.getHours();
var min = t.getMinutes();
var sec = t.getSeconds();

if (hours < 10)
hours = "0" + hours;
if (min < 10)
min = "0" + min;
if (sec < 10)
sec = "0" + sec;
//document.clock.m.value = min;
//document.clock.s.value = sec;
document.klokke.tid.value = hours + ":" + min + ":" + sec + " ";
window.setTimeout("clock()", 900);
}