in calndar2.js (for example)
line 71
        var obj_calwindow = window.open(
                'calendarlookup.htm?datetime=' + this.dt_current.valueOf()+ '&id=' + this.id,
                'Calendar', 'width=200,height='+(this.time_comp ? 215 : 180)+
                ',status=no,resizable=no,top=200,left=200,dependent=yes,alwaysRaised=yes'
        );
Cheers
Bruce