1 files changed, 7 insertions, 2 deletions
diff --git a/public/assets/javascripts/util.js b/public/assets/javascripts/util.js
index 7812a4d..76c5c7b 100644
--- a/public/assets/javascripts/util.js
+++ b/public/assets/javascripts/util.js
@@ -92,9 +92,10 @@ function smoothstep(min,max,n){
 }
 
 function shuffle(a){
+  var r, swap
   for (var i = a.length; i > 0; i--){
-    var r = randint(i)
-    var swap = a[i-1]
+    r = randint(i)
+    swap = a[i-1]
     a[i-1] = a[r]
     a[r] = swap
   }
@@ -173,6 +174,10 @@ function invert_hash (h) {
 	for (var i in h) { if (h.hasOwnProperty(i)) k[h[i]] = i }
 	return k
 }
+function filenameFromUrl (url) {
+  var partz = url.split( "/" )
+  return partz[partz.length-1].split(".")[0]
+}
 
 function bitcount(v) {
   v = v - ((v >>> 1) & 0x55555555);