function pub(temps)
{
	document.getElementById("pop_pub").style.position = "absolute" ;
	document.getElementById("pop_pub").style.left = "175px" ;
	document.getElementById("pop_pub").style.top = "97px" ;
	document.getElementById("pop_pub").style.display = "block" ;
	duree = temps ;
	setTimeout("fermer_pub()",10000) ;
}
function fermer_pub()
{
	document.getElementById("pop_pub").style.display = "none" ;
}