function open_wind (url){
dx = 1014;
dy = 711;
px = (screen.width-(dx+10)) / 2;
py = (screen.height-(dy+29)) / 2;
v = window.open(url,"","toolbar=no,location=no,directories=no,status=no, menubar=no,scrollbars=no,resizable=no,width="+dx+",height="+dy+",top="+py+",left="+px+",screenX="+px+",screenY="+py);
v.focus();
}