function cache(id)
	{
	if(document.getElementById(id).style.visibility == 'visible')
		{
		document.getElementById(id).style.visibility = 'hidden';
		document.getElementById(id).style.display = 'none';
		}
	else
		{
		document.getElementById(id).style.visibility = 'visible';
		document.getElementById(id).style.display = 'block';
		}
	}
function montre(id)
	{
	if(document.getElementById(id).style.visibility == 'hidden')
		{
		document.getElementById(id).style.visibility = 'visible';
		document.getElementById(id).style.display = 'block';
		}
	else
		{
		document.getElementById(id).style.visibility = 'hidden';
		document.getElementById(id).style.display = 'none';
		}
	}
	
function contact(name, type)
	{
	if(type == 1)
		{
		if(document.getElementById("envoi_mp").destinataire.value == '')
			document.getElementById("envoi_mp").destinataire.value = name;
		else
			document.getElementById("envoi_mp").destinataire.value = document.getElementById("envoi_mp").destinataire.value+', '+name;
		}
	else
		document.getElementById("envoi_mp").destinataire.value = name;
	document.getElementById("liste_contact").style.visibility = "hidden";
	}
	
function lien_form(form)
	{
	if (form.changer_forum.selectedIndex != 0)
		window.top.location.href = form.changer_forum.options[form.changer_forum.selectedIndex].value;
	else
		alert('Veuillez choisir un forum !');
	}