function getIP(url)
{
document.getElementById("ip").innerHTML='Requête en cours...';
if((url.replace(/(^\s*)|(\s*$)/g,'')).length>0){
   url=url.replace(/(^\s*)|(\s*$)/g,'').toLowerCase().replace("http://",'').replace( /\/.*/,'' );
    var xhr=null;
    if (window.XMLHttpRequest) { 
        xhr = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) 
    {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");
    }
    xhr.onreadystatechange = function() { alert_ajax(xhr);};
    xhr.open('POST', 'http://www.hyper-lien.com/outils/getHeb.php', true);
    xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xhr.setRequestHeader("Connection", "close");
      xhr.send('url='+url);
}else{document.getElementById("ip").innerHTML='Il faut saisir une URL';}
}
function alert_ajax(xhr)
{
    if (xhr.readyState==4) 
    {
  if (xhr.status == 200) {
        arg=xhr.responseText+ ' ';
        re= new RegExp('[^\.]+\.[^\.]+ ') ;
       str = arg.match(re);
       rex = new RegExp('\\b\\d{1,3}\.\\d{1,3}\.\\d{1,3}\.\\d{1,3}\\b');
       ok = arg.match(rex)
if(xhr.responseText.indexOf('Warning')<=0){
 if(ok){document.getElementById("ip").innerHTML='<a href="http://'+xhr.responseText+'" target="_blank" style="color:red;font-weight:900;font-size:35px;letter-spacing: -2px;text-align:center;">http://'+xhr.responseText+'</a>';}
 else{document.getElementById("ip").innerHTML='<a href="http://www.'+str[0]+'" target="_blank" style="color:red;font-weight:900;font-size:35px;letter-spacing: -2px;text-align:center;">http://www.'+str[0]+'</a>';}}
else{document.getElementById("ip").innerHTML='L\'hébergeur est introuvable'}
    }}}