toggle angularjs, ng-show and ng-hide in angularjs

<!DOCTYPE html>
<html>
<head>
    <script src="http://code.angularjs.org/1.2.0-rc.2/angular.js"></script>
    <script>
        function mainController($scope) {
            $scope.display = {
                
                ngShow: true,
                ngHide: true
            };
            
            $scope.ngShowhide =true;
            $scope.ngShowhideFun =function(flag){
              
            };
        }
    </script>
</head>
<body ng-app>
    <div ng-controller="mainController">
        <div ng-click="ngShowhideFun(ngShowhide)">
            <div ng-show="ngShowhide">
               <div>Anil1</div>
            </div>
        </div>
    </div>
</body>
</html>

// Code goes here

/* Styles go here */