[AJAX] Popup DHTML et chat ajax instantané

Bonjour , j'ai mis mon script de Tchat instantané dans un popup DHTML avec l'ajax .

Serait il possible de rafraîchir ce popup pour lire le message en cliquant sur le user dans l' iframe rooms privé qui rafraichirais l'iframe private cela en ajax

Code:

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<?php $id=$_GET['id']; $pseudo= $_GET['pseudo']; $contact=$_GET['contact'];?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 
<head>	
<link rel='stylesheet' href='sample.css' type='text/css'>
<style type='text/css'>
.dragme { cursor: move }
</style>
<script type='text/javascript'>
var ie = document.all;
var nn6 = document.getElementById &&! document.all;
 
var isdrag = false;
var x, y;
var dobj;
 
function movemouse( e ) {
  if( isdrag ) {
    dobj.style.left = nn6 ? tx + e.clientX - x : tx + event.clientX - x;
    dobj.style.top  = nn6 ? ty + e.clientY - y : ty + event.clientY - y;
    return false;
  }
}
 
function selectmouse( e ) {
  var fobj       = nn6 ? e.target : event.srcElement;
  var topelement = nn6 ? "HTML" : "BODY";
 
  while (fobj.tagName != topelement && fobj.className != "dragme") {
    fobj = nn6 ? fobj.parentNode : fobj.parentElement;
  }
 
  if (fobj.className=="dragme") {
    isdrag = true;
    dobj = document.getElementById("styled_popup");
    tx = parseInt(dobj.style.left+0);
    ty = parseInt(dobj.style.top+0);
    x = nn6 ? e.clientX : event.clientX;
    y = nn6 ? e.clientY : event.clientY;
    document.onmousemove=movemouse;
    return false;
  }
}
 
function styledPopupClose() {
  document.getElementById("styled_popup").style.display = "none";
}
 
document.onmousedown=selectmouse;
document.onmouseup=new Function("isdrag=false");
 
//  rechargement de message reçu
function descendreTchat(){
	// Marche pas -> var scroll_top = parent.frames["tchat"].scrollHeight;
	parent.frames["private"].scrollBy(0,999999);
}
 
function showMessage(){
 
var x_object2 = null;
	if(window.XMLHttpRequest){
		x_object2 = new XMLHttpRequest();
	}else if(window.ActiveXObject){
		x_object2 = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		alert('Votre navigateur de supporte pas la technologie AJAX(XMLHttpRequest)...');
	return;
	}
 
 
	x_object2.open("POST","private_box.php?id=<?php echo $id; ?>",true);
	x_object2.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	x_object2.send(null);
 
	x_object2.onreadystatechange = function(){
		if(x_object2.readyState==4){
			if(x_object2.status==200){
			parent.frames["private"].document.body.innerHTML = x_object2.responseText;
			descendreTchat();
			Layer1.style.visibility="hidden";
			}
		}
	}
 
}
setInterval(showMessage,1000);
</script>
</head>
<body onLoad="descendreTchat()">
<h1>DHTML Popups Sample 06</h1>
<div id='styled_popup' name='styled_popup' style='width: 480px; height: 350px; display:none; position: absolute; top: 100px; left: 700px;'>
<table width='380' cellpadding='0' cellspacing='0' border='0'>
<tr>
<td><img height='23' width='456' src='images/x11_title.gif' class='dragme'></td>
<td><a href='javascript:styledPopupClose();'><img height='23' width='24' src='images/x11_close.gif' border='0'></a></td>
</tr>
<tr><td colspan='2' style='background: url(images/x11_body.gif) no-repeat top left; width: 460px; height: 340px;'>
 
 
<table width="470">
  <tr>
    <td width="308" height="285"><table width="304">
      <tr>
        <td width="296" height="153"><iframe name="private" id="private" src="default.html"  width="300" heigh="100%" scrolling="Auto"></iframe></td>
      </tr>
      <tr>
        <td height="90"><iframe src="private_message.php?id=<?php echo $id; ?>&amp;contact=<?php echo $contact; ?>&amp;pseudo=<?php echo $pseudo; ?>" name="chat" width="300" scrolling="No" id="chat"        heigh="100"></iframe></td>
      </tr>
    </table></td>
    <td width="150"><iframe src="rooms.php?pseudo=<?php echo $pseudo; ?>" name="rooms" width="100%" height="305" scrolling="Auto" id="rooms"></iframe></td>
  </tr>
</table>
 
 
</td></tr>
</table>
</div>
 
<input type='submit' onClick='document.getElementById("styled_popup").style.display="block"' value=' Fire! '>
 
</body>
</html>

et la partie ici dessus onclick sur une autre répertoire comme le code ici dessous merci

Code:

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<a target=_blank href='chat/private.php?id=".$id_online."&pseudo=".$pseudo_online."&contact=".$pseudo_online."'>
				<img src='images/BL.gif' width='15' height='15'' border='0'/></a>