function newwindow(help_file) {
        var x = screen.width - 370;
        nwin = window.open(help_file,'Newwindow','width=350,height=350,left='+x+',scrollbars=yes,resizable=yes,location=no,menubar=no');
        nwin.focus();
}

function newwindow2(help_file) {
        var x = screen.width - 1000;
        nwin = window.open(help_file,'Newwindow','width=700,height=500,left='+x+',scrollbars=yes,resizable=yes,location=no,menubar=no');
        nwin.focus();
}

function newwindow3(help_file) {
        var x = screen.width - 1000;
        nwin = window.open(help_file,'Newwindow','width=700,height=160,left='+x+',scrollbars=yes,resizable=yes,location=no,menubar=no');
        nwin.focus();
}