/*
2007-12-03:
  - separated from lvc4_main.html (mv)
*/

var is_extra_menu = false; 


function togle_sub_menu(){ 
  $('top_sub_menu').show(); 
  $('top_sub_menu_extra').hide(); 
  Cookie.erase('_menu'); 
} 


function load_extra_menu(){ 
  $('top_sub_menu').hide(); 
  $str = $('top_sub_menu_extra').innerHTML; 
  Cookie.erase('_menu'); 
  Cookie.set('_menu', $str); 
//DEBUG 
//alert('debug: setting cookie _menu to ' + $str); 
} 


var Cookie = { 
  set: function(name, value, daysToExpire) { 
    var expire = ''; 
    if (daysToExpire != undefined) { 
      var d = new Date(); 
      d.setTime(d.getTime() + (86400000 * parseFloat(daysToExpire))); 
      expire = '; expires=' + d.toGMTString(); 
    } 
    value = value+'END'; 
    return (document.cookie = escape(name) + '=' + escape(value || '') + expire); 
  }, 
  get: function(name) { 
    cook = unescape(document.cookie); 
    var cookie = cook.match(new RegExp('(^|;)\\s*'+name+'=([^;]*)END')); 
    return (cookie ? cookie[2] : null); 
  }, 
  erase: function(name) { 
    var cookie = Cookie.get(name) || true; 
    Cookie.set(name, '', -1); 
    return cookie; 
  }, 
  accept: function() { 
    if (typeof navigator.cookieEnabled == 'boolean') { 
      return navigator.cookieEnabled; 
    } 
  } 
};