function toggle(targetId){ 
  if (document.getElementById){ 
		target = document.getElementById(targetId); 
			 if (target.style.display == "none"){ 
					target.style.display = "block";
					target.style.visibility = "visible";
			 } else { 
					target.style.display = "none";
					target.style.visibility = "hidden";
		} 
	} 
}

function openTarget(targetId){ 
  try
  {
    if (document.getElementById){ 
	    target = document.getElementById(targetId); 
		if (target.style.display == "none"){ 
			target.style.display = "block";
			target.style.visibility = "visible";
        }
	} 
  }
  catch(err)
  {
    //Ignore
  }  
}

function closeTarget(targetId){ 

    try
    {
        if (document.getElementById){ 
	        target = document.getElementById(targetId); 
		    if (target.style.display == "block"){ 
			    target.style.display = "none";
			    target.style.visibility = "hidden";
            }
	    } 
    }
    catch(err)
    {
        //Ignore
    }
  
}