function showitem(nommenu,color)
{
 var menu = ["rtbfbe","info","radio","television","entreprise","teletexte"];
 for (i = 0; i < menu.length; i++)
{
  id = document.getElementById(menu[i]);
  ida = document.getElementById("_"+menu[i]);
  if(nommenu == menu[i]){
   if(ida != null)
   ida.style.color = color;
   if(id != null)
   id.style.display='inline';
  }
  else{
  if(id != null)
  id.style.display='none';
  if(ida != null)
  ida.style.color = '';
  }
 
}
}