add: document.getElementById( "display-todo-inview-checkbox-2" ).setAttribute( "disabled", "true"  ); 
context: MultiweekView.prototype.switchFrom = function multiweekView_switchFrom( ){   //Taking care of button   document.getElementById( "multiweek_view_command" ).removeAttribute( "disabled" );   //Enable menu options   document.getElementById( "only-workday-checkbox-1" ).setAttribute( "disabled", "true" );   document.getElementById( "only-workday-checkbox-2" ).setAttribute( "disabled", "true"  );   document.getElementById( "display-todo-inview-checkbox-1" ).setAttribute( "disabled", "true"  );   document.getElementById( "menu-numberofweeks-inview" ).setAttribute( "disabled", "true"  );}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/8d5b9e848f1b46aee74fa436bf42535c99516433/multiweekView.js/buggy/calendar/resources/content/multiweekView.js