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-rw-r--r--include/ui.js5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/ui.js b/include/ui.js
index cfdedb3..91cad7c 100644
--- a/include/ui.js
+++ b/include/ui.js
@@ -53,7 +53,10 @@ var UI;
// Render default UI and initialize settings menu
start: function(callback) {
- UI.isTouchDevice = 'ontouchstart' in document.documentElement;
+ UI.isTouchDevice = (('ontouchstart' in window)
+ // required for MS Surface
+ || (navigator.maxTouchPoints > 0)
+ || (navigator.msMaxTouchPoints > 0));
// Stylesheet selection dropdown
var sheet = WebUtil.selectStylesheet();