bVer = parseInt(navigator.appVersion);

function extra(url,width,height)
{
        if (bVer >= 3)
        this.url=url;
        {  moreextra = window.open(url,'','toolbar=no,status=no,menubar=no,resizable,width='+width+',height='+height);
           //moreextra.moveTo(50,30);
           moreextra.focus(); }
}