if (window.print) 
function close_window(){parent.window.close();}
if ((window.navigator.appName.indexOf("Microsoft")==0) &
(window.navigator.appVersion.substring(0,1)=="4")) {
                                window.focus();
                        }
                        else
                            if ((window.navigator.appName.indexOf("Netscape")
==0) & (window.navigator.appVersion.substring(0,1)=="4")) {
                                window.focus();
                        }