function reg_newsletter(){
  if((document.form.newsletter_name.value == 'Namn' || document.form.newsletter_name.value == '') && (document.form.newsletter_email.value == 'E-postadress' || document.form.newsletter_email.value == '')){
    alert('Fyll i namn och e-postadress.');
  }else{
    document.form.act.value = 'reg_newsletter';
    document.form.submit();
  }
}

function search(){
  if(document.form.search_str.value == ''){
    alert('Skriv in ett sökord först.');
  }else{
    document.form.act.value = 'search';
    document.form.page.value = 'search';
    document.form.submit();
  }
}

function lang_change(){
  document.form.lang_id.value = document.form.new_lang_id[document.form.new_lang_id.selectedIndex].value;
  document.form.page.value = '';
  document.form.submit();
}

function page_login(){
  document.form.act.value = 'page_login';
  document.form.page.value = '';
  document.form.link_id.value = '';
  document.form.ext_link.value = '';
  document.form.submit();
}