current_active_item = '3';

function make_active(elem) {
 if (current_active_item != elem) {  
  document.getElementById("left-menu-item-"+current_active_item).className = "nonactive";
  document.getElementById("left-menu-item-"+elem).className                = "active";
  document.getElementById("content-item-"+current_active_item).className   = "content nonactive";
  document.getElementById("content-item-"+elem).className                  = "content active";

    if ((current_active_item=='1')) {
       document.getElementById("top-menu-item-1").className                = "nonactive";
       document.getElementById("top-menu-item-2").className                = "active";
       document.getElementById("homepage-content-holder").className                 = "normal";            
    }
    if ((elem=='1')) {
       document.getElementById("top-menu-item-1").className                = "active";
       document.getElementById("top-menu-item-2").className                = "nonactive";
       document.getElementById("homepage-content-holder").className                 = "spec";            
    }
 current_active_item = elem;
 
 }
return;
}