var win = null;
            function NewWindow(mypage, myname, w, h, scroll, pos){
                if (pos == "random") {
                    LeftPosition = (screen.width) ? Math.floor(Math.random() * (screen.width - w)) : 100;
                    TopPosition = (screen.height) ? Math.floor(Math.random() * ((screen.height - h) - 75)) : 100;
                }
                if (pos == "center") {
                    LeftPosition = (screen.width) ? (screen.width - w) / 2 : 100;
                    TopPosition = (screen.height) ? (screen.height - h) / 2 : 100;
                }
                else 
                    if ((pos != "center" && pos != "random") || pos == null) {
                        LeftPosition = 0;
                        TopPosition = 20
                    }
                settings = 'width=' + w + ',height=' + h + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=' + scroll + ',location=yes,directories=no,status=yes,menubar=yes,toolbar=no,resizable=yes';
                win = window.open(mypage, myname, settings);
            }