function showhide(id) {
  if($(id).style.display == 'none') {
    $(id).style.display = '';
    window.location = '#emailform';
  } else {
    $(id).style.display = 'none'
  }
}

function check_emailfriend_form() {
  if($('youremail').value == '' || $('friendsemail').value == '') {
    alert('Please make sure all required fields are completed');
    return false;
  } else {
    document.email_form.submit();
  }
}