function fenetre(url,nom) {
	window.open(url,nom, 'toolbar=no,location=no,directories=no,status=no,menubar=yes,scrollbars=yes,resizable=yes,copyhistory=no,top=10,left=10,width=740,height=470')
}
	function fenetre2(url,nom) {
	window.open(url,nom, 'toolbar=no,location=no,directories=no,status=no,menubar=yes,scrollbars=yes,resizable=yes,copyhistory=no,top=10,left=10,width=690,height=500')
}
	function fenetre3(url,nom) {
	window.open(url,nom, 'toolbar=no,location=no,directories=no,status=no,menubar=yes,scrollbars=yes,resizable=yes,copyhistory=no,top=10,left=10,width=500,height=550')
}