anchor.diff:  
   				}
   
  -				if (allDaysAreHidden) hideButton.conceal()
  -				else hideButton.reveal()
  +				if (allDaysAreHidden) {
  +                    hideButton.conceal()
  +                }
  +				else {
  +                    hideButton.reveal()
  +                }
   
   			}
   
  
positive.code: 				 allDaysArePresent = false;
  				 allDaysAreHidden = true;
  				 init = true;
  			}
  			function check()
  			{
  
  
negative.code: 
  			}
  			function initializeNewStudySegment(){
                  if (init == null) {
                      initialize_arrows();
                  }
                  if ($$(".day").length != 0){
  			    	initialize_arrows()
  					showSetup()
  					hideSetup()
  