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