Merge branch 'patch-3' into 'pregmod-master'

Add random JS functions

See merge request pregmodfan/fc-pregmod!1225

src/js/utilJS.tw

@@ -400,6 +400,26 @@ window.numberWithCommas = function(x) {
     return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
 }
 
+
+window.jsRandom = function(min,max) {
+    return Math.floor(Math.random()*(max-min+1)+min);
+}
+
+window.jsRandomMany = function (arr, count) {
+	var result = [];
+	var _tmp = arr.slice();
+	for (var i = 0; i < count; i++) {
+		var index = Math.ceil(Math.random() * 10) % _tmp.length;
+		result.push(_tmp.splice(index, 1)[0]);
+	}
+	return result;
+}
+
+window.jsEither = function(choices) {
+	var index = Math.floor(Math.random() * choices.length);
+	return choices[index];
+}
+
 /*
 Make everything waiting for this execute. Usage: