<!--
function toggle( targetId ){
  if (document.getElementById){
        target = document.getElementById( targetId );
           if (target.style.display == "none"){
              target.style.display = "";
           } else {
              target.style.display = "none";
           }
     }
  }
  function toggleall( targetId , nb){
 			for(var i=1;i<=nb;i++){
      if (document.getElementById){
        target = document.getElementById(targetId+i);
        target.style.display = "";
      }
		 	}
  }
  function invtoggleall( targetId , nb){
 			for(var i=1;i<=nb;i++){
      if (document.getElementById){
        target = document.getElementById(targetId+i);
        target.style.display = "none";
      }
		 	}
  }
-->