AngularJS Example

HTML

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.1.4/angular.min.js"></script>
<div ng-app="">
  <a href="" ng-class="state" ng-click="state=(!(class=['classA','classB','classC'])||class[(+index<(class.length-1)&&(index++)||(index=0))])">Toggle!</a>
  <p>{{index}} - {{state}} - {{class}}</p>
</div>

CSS

.classA { background: red;}
.classB { background: orange;}
.classC { background: yellow;}