<script type="text/javascript">
jQuery.cookie = function(name, value, options) {
  if (typeof value != 'undefined') {
  options = options || {};
  if (value === null) {
  value = '';
  options.expires = -1;
  }
  var expires = '';
  if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
  var date;
  if (typeof options.expires == 'number') {
  date = new Date();
  date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
  } else {
  date = options.expires;
  }
  expires = '; expires=' + date.toUTCString();
  }
  var path = options.path ? '; path=' + (options.path) : '';
  var domain = options.domain ? '; domain=' + (options.domain) : '';
  var secure = options.secure ? '; secure' : '';
  document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
  } else {
  var cookieValue = null;
  if (document.cookie && document.cookie != '') {
  var cookies = document.cookie.split(';');
  for (var i = 0; i < cookies.length; i++) {
  var cookie = jQuery.trim(cookies[i]);
  if (cookie.substring(0, name.length + 1) == (name + '=')) {
  cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
  break;
  }
  }
  }
  return cookieValue;
  }
};

$(document).ready(function(){
     var tab_cookie = $.cookie('tab_cookie');
     if(tab_cookie==null || tab_cookie=='norm') { Twrite('nenorm'); }
     if(tab_cookie=='nenorm') { Twrite('norm'); }
});

function Twrite(tab) {
     if(tab=='norm') {
         $('.norm').hide();
         $('#norm').hide();
         $('#nenorm').show();
         $('.nenorm').show();
         $.cookie('tab_cookie', 'nenorm', {expires: 365, path: '/'});
     }
     if(tab=='nenorm') {
         $('.norm').show();
         $('#norm').show();
         $('#nenorm').hide();
         $('.nenorm').hide();
         $.cookie('tab_cookie', 'norm', {expires: 365, path: '/'});
     }
}
</script>

<a href="javascript:;" id="norm" style="display:inline" onclick="Twrite('norm');" title="Norm">Norm</a>
<a href="javascript:;" id="nenorm" style="display:none" onclick="Twrite('nenorm')">NeNorm</a>
<div class="norm">NORM TEXT</div>
<div class="nenorm" style="display:none">NE NORM TEXT</div>