function afficher_question_secteur(id_rubrique)
	{
		document.getElementById('rubrique').value = id_rubrique;
		document.acceuil_forum.action = "rubriques_forum.php?id_rubrique="+id_rubrique;
		document.acceuil_forum.submit();
	}

	function getXhr()
	{
		var xhr = null; 
		if(window.XMLHttpRequest) // Firefox et autres
			xhr = new XMLHttpRequest(); 
		else 
		{	
			if(window.ActiveXObject)
			{ // Internet Explorer 
				try
				{
					xhr = new ActiveXObject("Msxml2.XMLHTTP");
				} 
				catch (e) 
				{
					xhr = new ActiveXObject("Microsoft.XMLHTTP");
				}
			}
			else
			{ // XMLHttpRequest non supporté par le navigateur 
				alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
				xhr = false; 
			} 
		}
		return xhr;
	}

	function cacher_type()
	{
		var txt = document.getElementById('pseudo_msg').value ;

		if ( txt.length <= 0	)
		{
			document.getElementById('abc').style.display = "none";	
		}
		else
		{
			var xhr = getXhr(); 
			xhr.onreadystatechange = function()
			{  	  
				if(xhr.readyState == 4 && xhr.status == 200)
				{		
					if  (xhr.responseText  == 1)
					{
						document.getElementById('abc').style.display = "inline";	
						document.getElementById('pseudo_msg').focus();		
					}
					else
						document.getElementById('abc').style.display = "none";	
				}
			}

			data = "&acte_=10"; 			
			xhr.open("POST","function_test.php",true);
			xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");                  
			xhr.send(data);
		}
	}