function writediv(texte, DivName)
{
	document.getElementById(DivName).innerHTML = texte;
}

function verifPseudo(Pseudo, Nfield, Ntable, MinL, DivName)
{
	if(Pseudo != '')
	{
		if(Pseudo.length<MinL)
		{
			writediv('<span style="color:red; background-color:yellow;"><strong>'+Pseudo+' :</strong> trop court</span>', DivName);
			document.getElementById('Valider').disabled = true;
		}
		else if(texte = file('ajaxlogin.php?login='+escape(Pseudo)+'&table='+escape(Ntable)+'&field='+escape(Nfield)))
		{
			if(texte == 1)
			{
				writediv('<span style="color:red; background-color:yellow;"><strong>'+Pseudo+' :</strong> déjà pris</span>', DivName);
				document.getElementById('Valider').disabled = true;
			}
			else if(texte == 2)
			{
				writediv('<span style="color:green;"><span><strong>'+Pseudo+' :</strong> libre</span>', DivName);
				document.getElementById('Valider').disabled = false;
			}
			else
			{
				writediv(texte, DivName);
			}
		}
	}
}

function file(fichier)
{
	if(window.XMLHttpRequest) // FIREFOX
		xhr_object = new XMLHttpRequest();
	else if(window.ActiveXObject) // IE
		xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
	else
		return(false);
	xhr_object.open("GET", fichier, false);
	xhr_object.send(null);
	if(xhr_object.readyState == 4) return(xhr_object.responseText);
	else return(false);
}