function gei(target)
{
    return document.getElementById(target);
}

function toggle(targetId)
{
 if (document.getElementById)
 {
     target = gei( targetId );
 
    if (target)
    {
  	if (target.style.display == "none")
  	    target.style.display = "";
  	else
  	    target.style.display = "none";
  	}
 }
}