<script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
function is_touch_device() {
function is_touch_device() {
return !!('ontouchstart' in window) || !!('onmsgesturechange' in window);
};
$(document).ready(function() {
if (is_touch_device()) {
alert('portable');
} else {
alert('desktop');
}
})