Таймер обратного времени

var time = 12;
var page = "#page2";
function countDown(){
time--;
gett("timer_page2").innerHTML = time;
if(time == 0){
window.location = page;
}
}
function gett(id){
if(document.getElementById) return document.getElementById(id);
if(document.all) return document.all.id;
if(document.layers) return document.layers.id;
if(window.opera) return window.opera.id;
}
function init(){
if(gett('timer_page2')){
setInterval(countDown, 1000);
gett("timer_page2").innerHTML = time;
}
else{
setTimeout(init, 50);
}
}
document.onload = init();

var time = 12;
var page = "#page2";
var idInterval = null;
 
function countDown(){
 time--;
 var timer_page2 = gett("timer_page2");
 timer_page2.innerHTML = time;
 if(time <= 0){
  clearInterval(idInterval);
  timer_page2.style.display="none";
  //window.location = page;
 }
}
 
function gett(id){
 if(document.getElementById) return document.getElementById(id);
 if(document.all) return document.all.id;
 if(document.layers) return document.layers.id;
 if(window.opera) return window.opera.id;
}
 
function init(){
 if(gett('timer_page2')){
  idInterval = setInterval(countDown, 1000);
  gett("timer_page2").innerHTML = time;
 }else{
  setTimeout(init, 50);
 }
}
document.onload = init();

function countDown(){
time--;
gett("timer_page2").innerHTML = time;
if(time === 0){
window.location = page;
document.getElementById("timer_page2").style.display="none"
}
}

if (5>3) {console.log('это раз');} else { console.log('это... бл... что?');}