var win=null;
function okno(mypage,myname,w,h,infocus)
{
myleft=(screen.width)?(screen.width-w)/2:100;
mytop=(screen.height)?(screen.height-h)/2:100;
settings="width=" + w + ",height=" + h + ",top=" + mytop + ",left=" + myleft + ",scrollbars=0,location=0,directories=0,status=0,menubar=0,toolbar=0,resizable=1";
win=window.open(mypage,myname,settings);
win.focus();
}