whole_func_string: function(name) {
  			if (name in preferences)
  				return preferences[name];
  			
  			if (name in defaults)
  				return defaults[name].value;
  			
  			return void 0;
  		}
func_code_string: function(name) {
  			if (name in preferences)
  				return preferences[name];
  			
  			if (name in defaults)
  				return defaults[name].value;
  			
  			return void 0;
  		}
func_documentation_string: Returns preference value
  @param {String} name
  @returns {String} Returns <code>undefined</code> if preference is
  not defined