function popup(page,largeur,hauteur,option)
{
	var options="scrollbars=yes,resizable=yes";
	var top=(screen.height-hauteur)/2;
	var left=(screen.width-largeur)/2;		
	window.open(page+"","","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+option);
}