/*
    Preloads top navigation buttons.
*/
var top_buttons = Array();

top_buttons[0] = new Array();
top_buttons[0]['on'] = new Image();
top_buttons[0]['on'].src = 'images/top_nav_home_on.gif';
top_buttons[0]['off'] = new Image();
top_buttons[0]['off'].src = 'images/top_nav_home_off.gif';

top_buttons[1] = new Array();
top_buttons[1]['on'] = new Image();
top_buttons[1]['on'].src = 'images/top_nav_about_us_on.gif';
top_buttons[1]['off'] = new Image();
top_buttons[1]['off'].src = 'images/top_nav_about_us_off.gif';

top_buttons[2] = new Array();
top_buttons[2]['on'] = new Image();
top_buttons[2]['on'].src = 'images/top_nav_news_on.gif';
top_buttons[2]['off'] = new Image();
top_buttons[2]['off'].src = 'images/top_nav_news_off.gif';

top_buttons[3] = new Array();
top_buttons[3]['on'] = new Image();
top_buttons[3]['on'].src = 'images/top_nav_promotions_on.gif';
top_buttons[3]['off'] = new Image();
top_buttons[3]['off'].src = 'images/top_nav_promotions_off.gif';

top_buttons[4] = new Array();
top_buttons[4]['on'] = new Image();
top_buttons[4]['on'].src = 'images/top_nav_media_en_on.gif';
top_buttons[4]['off'] = new Image();
top_buttons[4]['off'].src = 'images/top_nav_media_en_off.gif';

top_buttons[5] = new Array();
top_buttons[5]['on'] = new Image();
top_buttons[5]['on'].src = 'images/top_nav_services_on.gif';
top_buttons[5]['off'] = new Image();
top_buttons[5]['off'].src = 'images/top_nav_services_off.gif';

top_buttons[6] = new Array();
top_buttons[6]['on'] = new Image();
top_buttons[6]['on'].src = 'images/top_nav_contacts_on.gif';
top_buttons[6]['off'] = new Image();
top_buttons[6]['off'].src = 'images/top_nav_contacts_off.gif';

/*
    Preloads lang navigation buttons.
*/
var lang_buttons = Array();

lang_buttons[0] = new Array();
lang_buttons[0]['on'] = new Image();
lang_buttons[0]['on'].src = 'images/top_nav_lang_bg_on.gif';
lang_buttons[0]['off'] = new Image();
lang_buttons[0]['off'].src = 'images/top_nav_lang_bg_off.gif';

lang_buttons[1] = new Array();
lang_buttons[1]['on'] = new Image();
lang_buttons[1]['on'].src = 'images/top_nav_lang_en_on.gif';
lang_buttons[1]['off'] = new Image();
lang_buttons[1]['off'].src = 'images/top_nav_lang_en_off.gif';