var da, df;

function ShowFind() {
    if (!da || !df) return;
    da.style.display = "none";
    df.style.display = "block";
    var fs = $("findSimilar");
    var li = fs.parentNode;
    li.className = "active";
    fs = li.removeChild(fs);
    var fss = document.createElement("span");
    fss.id = fs.id;
    fss.innerHTML = fs.innerHTML;
    fss.className = fs.className;
    li.appendChild(fss);        
    var ras = $("readArticle");
    li = ras.parentNode;
    li.className = "";
    ras = li.removeChild(ras);
    var ra = document.createElement("a");
    ra.href = "#" + da.id;
    ra.className = ras.className;
    ra.innerHTML = ras.innerHTML;
    ra.id = ras.id;
    ra.onclick = function() { ShowArticle(); return false; }
    li.appendChild(ra);
}
function ShowArticle() {
    if (!da || !df) return;
    df.style.display = "none";            
    da.style.display = "block";
    
    var ra = $("readArticle");
    var li = ra.parentNode;
    li.className = "active";
    ra = li.removeChild(ra);
    var ras = document.createElement("span");
    ras.id = ra.id;
    ras.innerHTML = ra.innerHTML;
    ras.className = ra.className;
    li.appendChild(ras);        
    var fss = $("findSimilar");
    li = fss.parentNode;
    li.className = "";
    fss = li.removeChild(fss);
    var fs = document.createElement("a");
    fs.href = "#" + df.id;
    fs.className = fss.className;
    fs.innerHTML = fss.innerHTML;
    fs.id = fss.id;
    fs.onclick = function() { ShowFind(); return false; }
    li.appendChild(fs);
}