function SelAll ()
{
	var nb;
	var chk;

	if (document.liste.SEL_ALL.value == 0)
	{
		chk=1
	}
	else
	{
		chk=0
	}

	nb = document.liste.elements.length
	for (var i=0;i<nb;i++)
	{
		var e = document.liste.elements[i];
		e.checked = chk
	}
	document.liste.SEL_ALL.value = chk;
}