<script type="text/javascript">
$(document).ready(function () {
if (is_touch_device()) {
// do something
}
});
function is_touch_device() {
return !!('ontouchstart' in window);
}
</script>
jQuery - detect for touch only device
If your website includes features that only available to devices with a touch screen , you not need to use external Modernizr libraries only use function below