viewportSize

example

A cross browser way to obtain the CSS viewport size using JavaScript. Resize your viewport and toggle the scroll bars to see it work.

viewportSize.getWidth() = Requires JavaScript

window.innerWidth = Requires JavaScript

documentElement.clientWidth = Requires JavaScript

viewportSize.getHeight() = Requires JavaScript

window.innerHeight = Requires JavaScript

documentElement.clientHeight = Requires JavaScript

<script type="text/javascript">
    var width = viewportSize.getWidth();
    var height = viewportSize.getHeight();
</script>