function openw(page)
{
var largeur=700;
var hauteur=580;
var top=(screen.height-hauteur)/2;
var left=(screen.width-largeur)/2;
window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+",toolbar=no, menubar=no, location=no, directories=no, status=no, resizeable=no");
}