function openup(url)
{
	retour = top.window.open(url,"","width=800px,height=600px,resizable=1,scrollbars=1"); 
	top.window.focus();
}
function ouverture(url)
{
	var fenetre = window.open(url, "ouverture", "toolbar=no, status=yes, scrollbars=yes, resizable=yes, width=800, height=600");
	fenetre.blur();
	window.focus();
}