// global vars
var active_section, open_section, active_sub, anim_timeout;
var a_main_layers = new Array();
var a_sub_layers = new Array();
var menu_running = false;

// menu (animation) preferences
var menu_x = 0;
var menu_y = 145;
var item_height = 20;
var anim_speed = 30; // the smaller the faster
var anim_step = 8; // the higher thgife faster
var a_sections = new Array('tickets','account','infos','contact','footer'); // menu sections (needs two layers: 'main...' and 'sub...')
var a_img_list = new Array('main_high.gif','main_selected.gif','sub_high.gif','sub_selected.gif'); // filenames of the menu arrows
var img_dir = '../../images/nav/';

img_pas_markup = '_normal';
img_act_markup = '_high';


// ******** startup functions ********
    
function init_nav(section,sub)
  {
  if(!nex_browser_check())
    {
    location.href = '../browser.html';
    return;
    }
  active_section = section;
  active_sub = sub;

  // preload arrow images
/*
  if(document.images)
    {
    document.nexImageStack = new Array();
    for(var i=0; i<a_img_list.length; i++)
      {
      document.nexImageStack[i] = new Image();
      document.nexImageStack[i].src = img_dir + a_img_list[i];
      }
    }
*/


  var pos = get_image_pos('navposimage');
  menu_x = pos.x>0 ? pos.x : 0;
  menu_y = pos.y-1;

  // define all menu layers  
  for(var i=0; i<a_sections.length; i++)
    {
    a_main_layers[a_sections[i]] = new layer_object('main'+a_sections[i]);
    a_sub_layers[a_sections[i]] = new layer_object('sub'+a_sections[i]);
    }
    
  if(nex_browser_check(1))
    show_menu();

  if (section && bw.dom)
    {
    var elm = document.getElementById('maincell-'+section);
    if (elm)
      elm.className = 'mainnav-selected';
    }

  if(sub!=null && bw.dom)
    {
    var link = document.getElementById(section+sub);
    if (link)
      link.className = 'subnav-selected';
    }

//  preload_img();
  loaded = true;
  }

// set window status text
function wst(a)
  {
  window.status = a;
  return true;
  }

// checking the browser compatibility for this website
function nex_browser_check(nav)
  {
  var ok_flag = true;
  if(!bw.dhtml) ok_flag = false;

  if(nav && bw.opera && bw.vendver<7) ok_flag = false;
  else if(nav && bw.ie && bw.mac) ok_flag = false;
  else if(parseFloat(bw.ver)<4) ok_flag = false;

  return ok_flag;
  }

function show_menu()
  {
  var y_pos = menu_y;
  for(var n=0; n<a_sections.length; n++)
    {
    if(!a_main_layers[a_sections[n]].elm)
      continue;

    a_main_layers[a_sections[n]].move(menu_x,y_pos);
    a_main_layers[a_sections[n]].show(1);
    y_pos += item_height;

    if(a_sections[n] == active_section)
      {
      a_sub_layers[a_sections[n]].move(menu_x,y_pos);
      a_sub_layers[a_sections[n]].show(1);
      y_pos += a_sub_layers[a_sections[n]].height;
      }
    else
      a_sub_layers[a_sections[n]].show(0);
    }
  }

// ******** end startup functions ********

// ******** image animations ********

/*
function high_main(section)
  {
  if(section!=active_section && loaded)
    {
    var lay_obj = new layer_object('main'+section);
    var img_obj = lay_obj.doc.images['main_'+section];
    var switch_to = img_obj.src.indexOf('normal')>0 ? 'high' : 'normal';
    img_obj.src = img_dir+'main_'+switch_to+'.gif';
    }
  }
  
function select_main(section)
  {
  var lay_obj = new layer_object('main'+section);
  if(!lay_obj || !lay_obj.doc.images.length || !lay_obj.doc.images['main_'+section]) return;
  lay_obj.doc.images['main_'+section].src = img_dir+'main_selected.gif';
  }
*/

function high_sub(section,item)
  {
  if(!(item==active_sub && section==active_section) && loaded)
    {
    var lay_obj = new layer_object('sub'+section);
    var img_obj = lay_obj.doc.images['sub_'+section+'_'+item];
    var switch_to = img_obj.src.indexOf('normal')>0 ? 'high' : 'normal';
    img_obj.src = img_dir+'sub_'+switch_to+'.gif';
    }
  }
  
function select_sub(section,item)
  {
  var lay_obj = new layer_object('sub'+section);
  lay_obj.doc.images['sub_'+section+'_'+item].src = img_dir+'sub_selected.gif';
  }
  
function anim_sub(section, image_name, nr)
  {
  if(!document.images)
    return;

  // stop previous anim
  if(anim_timeout && nr==0)
    clearTimeout(anim_timeout);

  if(nr==6)
    return;

  // show next pic
  var lay_obj = new layer_object('sub'+section);
  var img_obj = lay_obj.doc.images['sub_'+section+'_'+image_name];
  if(!lay_obj.doc.images['sub_'+section+'_'+image_name]) return;

  if (img_obj.src.indexOf('normal') == -1)
    img_obj.src = img_obj.src.replace(/selected/, 'normal');
  else
    img_obj.src = img_obj.src.replace(/normal/, 'selected');

  // wait before next pic
  anim_timeout = setTimeout('anim_sub(\''+section+'\', \''+image_name+'\','+(nr+1)+')', 200);
  }

// ******** end image animations ********

// ******** menu animations ********

function click_main(section, obj)
  {
  if (obj && obj.blur)
    obj.blur();

  if(menu_running || !window.loaded || !nex_browser_check(1))
    return false;

  var pos = find_in_array(a_sections,section);
  
  if(section == active_section) // if clicked on active section
    {
    if(open_section) // if a sectin is opened
      {
      // close it
      close_menu_tree(open_section);
      open_section = false;
      }
    return false; // exit
    }
    
  else if(!open_section) // if no section is opened
    {
    // open new submenu
    open_section = section;
    open_menu_tree(section);
    }
    
  else if(open_section == section) // if click on opened section
    {
    // close open submenu and exit
    close_menu_tree(open_section);
    open_section = false;
    }
    
  else // if click on any section except the active and the opended one
    {
    // close open submenu and open new one
    close_menu_tree(open_section);
    open_section = section;
    open_menu_tree(section);
    }

  return false;
  }
  
var menu_working;
  
function close_menu_tree(section)
  {
  var start_clip = (a_sub_layers[section]) ? a_sub_layers[section].height : item_height*2;
  menu_working = true;  
  slide_menu_tree(section,start_clip,0,-1,'menu_working=false');
  }
  
function open_menu_tree(section)
  {
  if(!menu_working && a_main_layers[section])
    {
    var end_height = (a_sub_layers[section]) ? a_sub_layers[section].height : item_height*2;
    var y_pos = a_main_layers[section].y+item_height;
    a_sub_layers[section].clip(0,120,0,0);
    a_sub_layers[section].move(menu_x,y_pos);
    a_sub_layers[section].show(1);
    slide_menu_tree(section,0,end_height,1);
    }
  else
    setTimeout('open_menu_tree(\''+section+'\')',anim_speed);
  }
  
function slide_menu_tree(section,clipY,endY,dir,end_action)
  {
  if(!a_sub_layers[section]){ menu_running=false; return; }

  var pos = find_in_array(a_sections, section);
  var go_on = true;
  menu_running = true;

  if(end_action==null) end_action='';
  if((dir>0 && clipY>=endY) || (dir<0 && clipY<=endY))
    {
    clipY = endY;
    go_on = false;
    }
    
  a_sub_layers[section].clip(0,120,clipY,0);
  
  if(pos>=0)
    {
    var y_pos = a_main_layers[section].y+clipY+item_height;
    var sect;
    for(var n=pos+1; n<a_sections.length; n++)
      {
      sect = a_sections[n];
      if(!a_main_layers[sect].elm)
        continue;

      a_main_layers[sect].move(menu_x, y_pos);
      y_pos += item_height;
      if(sect == active_section)
        {
        a_sub_layers[sect].move(menu_x, y_pos);
        y_pos += a_sub_layers[sect].height;
        }
      }
    }
    
  if(go_on)
    setTimeout('slide_menu_tree(\''+section+'\','+(clipY+anim_step*dir)+','+endY+','+dir+',\''+end_action+'\')',anim_speed);
  else
    {
    if(end_action) eval(end_action);
    menu_running = false;
    }
  }
 

// ******** end menu animations ********

var nav = true;
var infolayers = new Object();

function show_info(id, e)
  {
  if (!e) e = window.event;
  if (!infolayers[id])
    infolayers[id] = new layer_object(id);

  var pos = get_mouse_pos(e);
  var bwin = get_window_size();

  var pos_x = pos.x+20;
  var pos_y = pos.y-5;

  if (infolayers[id].elm)
    {
    if(bwin.width < pos_x+infolayers[id].width)   pos_x = pos.x-15-infolayers[id].width;
    if(bwin.height < pos_y+infolayers[id].height) pos_y -= (pos_y+infolayers[id].height - bwin.height) + 10;

    infolayers[id].move(pos_x, pos_y);
    infolayers[id].show(1);
    }
  }

function hide_info(id)
  {
  if (infolayers[id])
    infolayers[id].show(0);
  }


// ******* set error handler properties ********

if(window.nex_debugger)
  nex_debugger.prototype.globals = new Array('user_id','firstname','lastname');