var act_news        = 1;
var all_news_nr     = 1;
var act_news_titles  = new Array();

var	site_bg = new Image() ; site_bg.src     = "images/bgr_changer_colors_base.png";
var	site_bg1 = new Image() ; site_bg1.src   = "images/bgr_changer_colors_img1.gif";
var	site_bg2 = new Image() ; site_bg2.src   = "images/bgr_changer_colors_img2.gif";
var	site_bg3 = new Image() ; site_bg3.src   = "images/bgr_changer_colors_img3.gif";
var	site_bg4 = new Image() ; site_bg4.src   = "images/bgr_changer_colors_img4.gif";
var	site_bg5 = new Image() ; site_bg5.src   = "images/bgr_changer_colors_img5.gif";
var	site_bg6 = new Image() ; site_bg6.src   = "images/bgr_changer_colors_img6.gif";
var	site_bg7 = new Image() ; site_bg7.src   = "images/bgr_changer_colors_img7.gif";


function img_over(that, img){
    that.src = img.src;
}
function change_news_title(id, txt){
    var obj = document.getElementById(id);        
    obj.innerHTML = txt;
}
function change_news_to_item(item)
{
    change_text_color('tab_link_' + act_news, '#7E7E7E');
    act_news = item;
    change_text_color('tab_link_' + act_news, '#D45B14');
}
function change_news_to_next(){

   change_text_color('tab_link_' + act_news, '#7E7E7E');
   act_news++;
   
   var objNext = document.getElementById('next_news_a');
    if(act_news == all_news_nr+1)   
    {
        act_news = 1;
    }
    change_text_color('tab_link_' + act_news, '#D45B14');
    
   objNext.href = "#tab"+act_news;
   reset_news_title();
}
function change_news_to_prev(){

   change_text_color('tab_link_' + act_news, '#7E7E7E');
   act_news--;
   
   var objPrev = document.getElementById('prev_news_a'); 
    if(act_news == 0)   
    {
        act_news = all_news_nr;
    }
    change_text_color('tab_link_' + act_news, '#D45B14');
    
   objPrev.href = "#tab"+act_news;
   reset_news_title();
}
function reset_news_title(){
    change_news_title('news_title', act_news_titles[act_news-1])
}

function change_text_color(id, color)
{
    var obj = document.getElementById(id);        
    obj.style.color = color;
}