function changeTop(x)
{  
    var sID;
    var o = document.getElementById("spTopTitle").getElementsByTagName("span")
    for(i=0;i<o.length;i++)
    {
        sID = o[i].id.replace("iTI","");
        sText = o[i].innerText;
        if(sID == x)
        {
            o[i].innerHTML = sText;
            document.getElementById("dvTI"+sID).style.display = "";
        }
        else
        {
            o[i].innerHTML = "<a href='' onclick=\"changeTop('"+ sID +"');return false;\">" + sText + "</a>";
            document.getElementById("dvTI"+sID).style.display = "none";
        }
    }
    
}