var flag = 0;
function hide_lgn () {
  var code = document.getElementById("code");
  var lis = document.getElementsByTagName("ol"); //.style.listStyleType="none";
  document.getElementById("lignes").innerHTML = "Montrer les numéros de lignes";
  
//   var lis = code.getElementsByTagName("li");
  for (i = 0; i < lis.length; i++)
  lis[i].style.listStyleType = "none";
}

function step1()
{
    var frm = document.forms['add'];
    
    var lang = frm.elements['lang'].value;
    var tit =  frm.elements['titre'].value;
    var comm =  frm.elements['comm'].value;
    var src =  frm.elements['src'].value;
    //  if(frm.elements['prenom'].value != "") {
    //alert(lang+' '+tit);
    if (tit == '' || src == '')
        alert('Vous devez remplir tous les champs !');
    else step2(lang, tit, comm, src);
    return false;
}

function step2(lang, tit, comm, src)
{
    var xhr = getHTTPObject('step2');
    var data = 'xhr=1&lang='+lang+'&titre='+tit+'&comm='+comm+'&src='+src;
    xhr.open("POST", 'add1.php', true);
    xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    xhr.send(data);
    return true;
}

function show_pseudo(pseudo)
{
    var xhr = getHTTPObject('show_pseudo');
    var data = 'xhr=1&pseudo='+pseudo;
    xhr.open("POST", 'show_pseudo.php', true);
    xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    xhr.send(data);
    return true;
}

function post()
{
    var xhr = getHTTPObject('post');
    var data = 'xhr=1';
    xhr.open("POST", 'post.php', true);
    xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    xhr.send(data);
    return true;
}

function update_list()
{
    var xhr = getHTTPObject('list');
    var data = 'xhr=1';
    xhr.open("POST", 'list.php', true);
    xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    xhr.send(data);
    return true;
}

function show_list_lang(lang)
{
    var xhr = getHTTPObject('show_list_lang');
    var data = 'xhr=1&lang='+lang;
    xhr.open("POST", 'show_list_lang.php', true);
    xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    xhr.send(data);
    return true; 
}

function show_code(id, c)
{
    var xhr = getHTTPObject('show_code');
    var data = 'xhr=1&id='+id+'&c='+c;
    xhr.open("POST", 'show_code.php', true);
    xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    xhr.send(data);
    return true; 
}

function getHTTPObject(action) 
{
    var xhr;
    if(window.XMLHttpRequest) xhr = new XMLHttpRequest();
    else if(window.ActiveXObject) xhr = new ActiveXObject("Microsoft.XMLHTTP");
    if (xhr) 
        {
            xhr.onreadystatechange = function() 
            {
                if (xhr.readyState == 4 && xhr.status && xhr.status == 200) {
                    if (action == 'step2') update_list();
                    if (action == 'list')
                        document.getElementById("lang_list").innerHTML = xhr.responseText;
                    else
                        document.getElementById("code").innerHTML = xhr.responseText;
                }
            }
                }	  
    return xhr;
}