function sendtoafriend(page_to_send)
 {
var winl = (screen.width - 570) / 2;
var wint = (screen.height - 430) / 2;

winprops = 'height=430,width=570,top='+wint+',left='+winl+',toolbar=no,location=0,location=no,directories=no,status4=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no'


win = window.open(page_to_send, 'open_popup', winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}