var swin=null;
function popitup(mypage,w,h,pos,myname,infocus){
    if (w!=parseInt(w)||w<=0) w=980;
    if (h!=parseInt(h)||h<=0) h=700;
    if (myname==null){myname="swin"};
    myleft=0;
    mytop=0;
    if (myleft==0 && mytop==0 && pos!="random"){pos="center"};
    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;}
    settings="width=" + w + ",height=" + h + ",top=" + mytop + ",left=" + myleft + ",scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no";swin=window.open(mypage,myname,settings);
    if (infocus==null || infocus=="front"){swin.focus()};
    return false;
}