// `scroller` defaults to the window

// optionally override `range` with `rangeTop` / `rangeBottom`

// scope defaults to directive $scope but can be passed alternative object/scope to set properties on (eg. for ng-repeat)

// if `className` is set this class will be applied to the directive $element if in range

<div class="scroller" style="overflow: scroll">

	<div ng-repeat="image in images" hj-on-screen="{scroller: '.scroller', scope: image, range: 1000, className: 'on-screen'}">

		<img ng-if="image.$onScreen" ng-src="{{image.src}}">

	</div>

</div>