function ajax(){
if(window.XMLHttpRequest) xhr=new XMLHttpRequest(); else if(window.ActiveXObject) xhr=new ActiveXObject('Microsoft.XMLHTTP'); else alert('Your browser is incompatible with this site.');}

function button(){
if(document.getElementById('input').value!='') document.getElementById('submit').disabled=false; else document.getElementById('submit').disabled=true;}

function options(i){
if(document.getElementById(i).style.display=='') document.getElementById(i).style.display='none'; else document.getElementById(i).style.display='';}

function menu(i){
if(document.getElementById(i).style.visibility=='hidden') document.getElementById(i).style.visibility='visible'; else document.getElementById(i).style.visibility='hidden';}

function pass(){
if(document.getElementById('pass')){
if(document.getElementById('bc')) document.getElementById('bc').removeChild(document.getElementById('pass')); else document.getElementById('page').removeChild(document.getElementById('pass'));}
else{
ajax();xhr.open('GET','/pass/pass_en.php',false);xhr.send(null);
if(xhr.readyState==4){
if(document.getElementById('bc')) document.getElementById('bc').innerHTML=xhr.responseText+document.getElementById('bc').innerHTML; else document.getElementById('page').innerHTML+=xhr.responseText;
document.documentElement.scrollTop=0;
if(document.getElementById('pass_pass')) document.getElementById('pass_pass').login.focus();}}}