var win = null; 
function NewWindow(mypage,myname,w,h,scroll){ 
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0; 
TopPosition = (screen.height) ? (screen.height-h)/2 : 0; 
settings = 
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable' 
win = window.open(mypage,myname,settings) 
} 
 
 
function bookmark(url,title){ 
  if ((navigator.appName == "Microsoft Internet Explorer") && 
(parseInt(navigator.appVersion) >= 4)) { 
  window.external.AddFavorite(url,title); 
  } else if (navigator.appName == "Netscape") { 
    window.sidebar.addPanel(title,url,""); 
  } else { 
    alert("Press CTRL-D (Netscape) or CTRL-T (Opera) to bookmark"); 
  } 
}