function M_over (number)
{
    menu = document.getElementById("b"+number);
    if (menu) {
        menu.style.backgroundImage = 'url(/img/act_button.gif)';
    }
}

function M_out (number)
{
    menu = document.getElementById("b"+number);
    if (menu) {
        menu.style.backgroundImage = 'url(/img/grad.gif)';
    }
}

function selectBox(part, art_id) 
{
    box = document.getElementById("art_"+part+'_'+art_id);
    if (box) {
        box.src = '/img/pict8.gif';
    }
}

function deSelectBox(part, art_id) 
{
    box = document.getElementById("art_"+part+'_'+art_id);
    if (box) {
        box.src = '/img/pict9.gif';
    }
}
    
function addToBookmarks(bUrl, bTitle) 
{
    if (document.all) {
        window.external.AddFavorite(bUrl, bTitle);
    }
}


var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);

function getRef(id,path) {
if(!path)
  path=document;
if (isDOM) return path.getElementById(id);
if (isIE4) return path.all[id];
if (isNS4) return path.layers[id];
}