/* congree 4 koho */

//function basis taken from http://forum.de.selfhtml.org/archiv/2004/9/t90330
function getElementsByClassName(class_name)
{
  var all_obj,ret_obj=new Array(),j=0,teststr;
  if(document.all)all_obj=document.all;
  else if(document.getElementsByTagName && !document.all)all_obj=document.getElementsByTagName("*");
  for(i=0;i<all_obj.length;i++)
  {
    if(all_obj[i].className.indexOf(class_name)!=-1)
    {
      teststr=","+all_obj[i].className.split(" ").join(",")+",";
      if(teststr.indexOf(","+class_name+",")!=-1)
      {
        ret_obj[j]=all_obj[i];
        j++;
      }
    }
  }
  return ret_obj;
}

function setSubmenuItemActive(sub_item)
{
  //unset all active items
  active_items=getElementsByClassName('submenuLiActive');
  for(i=0;i<active_items.length;i++)
  {
    active_items[i].className='submenuLiInactive';
  }
  
  //activate given item
  document.getElementById(sub_item).className = 'submenuLiActive';
}