function popup(url) 
            {
             params  = 'width='+screen.width;
             params += ', height='+screen.height;
             params += ', top=0, left=0';


             newwin=window.open(url,'_blank', params);
             if (window.focus) {newwin.focus();}
             return false;
            }

            function popupsmall(url) 
            {
             params  = 'width=375';
             params += ', height=250';
             params += ', top=10, left=10';


             newwin=window.open(url,'_blank', params);
             if (window.focus) {newwin.focus();}
             return false;
            }