function turnOff( targetId ){
 	 if (document.getElementById){
  		target = document.getElementById( targetId );
  				target.style.display = "none";
  			}
  		}
		
function turnOn( targetId ){
 	 if (document.getElementById){
  		target = document.getElementById( targetId );
  				target.style.display = "block";
  			}
  		}