var win = null;
function nouvPage(url,nom,w,h){
	
	hor = (screen.width) ? (screen.width-w)/2 : 0;
	ver = (screen.height) ? (screen.height-h)/2 : 0;

	settings = 'height='+h+',width='+w+',top='+ver+',left='+hor+',scrollbars=yes,status=no'
	win = window.open(url,nom,settings)

}