function SetOffset(off,lim){
  window.location.href = URLPREFIX+off+"/"+lim;
}

function isValidEmail(email,required){
  required = required || true;
  email = email || '';
  return /^[a-z0-9._-]+@([a-z0-9-]{2,})([.][a-z0-9-]{2,})*[.][a-z]{2,6}$/.exec(email);
}


/*function popup(mylink, windowname){
    if (! window.focus)return true;
    var href;
    if (typeof(mylink) == 'string')
       href=mylink;
    else
       href=mylink.href;
    window.open(href, windowname, 'width=690,height=550,scrollbars=yes');
    return false;
}*/