Just some sample code I need to share
<script>
function getScreenSize() {
// in pixels
if ( screen.width < 500 || screen.height < 500)
window.open('fb://profile/163825970332372')
}
</script>
<strong>Where would you like to review us?</strong>
<br><br>
<div class="hidden-android"><a href="https://www.facebook.com/LasCrucesOralFacialSurgery/" onclick="getScreenSize()">Facebook</a></div>