function NewWindow(mypage, myname, w, h, scroll) { var winl = (screen.width - w) / 2; var wint = (screen.height - h) / 2; winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable' win = window.open(mypage, myname, winprops) if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); } }