1 files changed, 2 insertions, 0 deletions
diff --git a/js/util.js b/js/util.js
index cecb210..dd5be06 100644
--- a/js/util.js
+++ b/js/util.js
@@ -6,6 +6,7 @@ if (window.$) {
   $.fn.disable = function() { return $(this).attr("disabled","disabled") }
 }
 
+function noop(){}
 function trim(s){ return s.replace(/^\s+/,"").replace(/\s+$/,"") }
 
 var E = Math.E
@@ -39,6 +40,7 @@ function sinp(n){ return (1+Math.sin(n))/2 }
 function random(){ return Math.random() }
 function rand(n){ return (Math.random()*n) }
 function randint(n){ return rand(n)|0 }
+function randrange(a,b){ return a + rand(b-a) }
 function choice(a){ return a[randint(a.length)] }
 function deg(n){ return n*180/PI }
 function rad(n){ return n*PI/180 }