Cleaned up JavaScript processing

I'm slowly trying to make the JavaScript processing and the WikiText
processing use the same conventions

js/JavaScriptParser.js

@@ -0,0 +1,29 @@
+/*\
+title: js/JavaScriptParser.js
+
+JavaScript processing
+
+\*/
+(function(){
+
+/*jslint node: true */
+"use strict";
+
+var JavaScriptParseTree = require("./JavaScriptParseTree.js").JavaScriptParseTree,
+	pegjs = require("pegjs");
+
+var JavaScriptParser = function(parserText) {
+	this.parser = pegjs.buildParser(parserText);
+};
+
+JavaScriptParser.prototype.parse = function(code) {
+	return new JavaScriptParseTree(this.parser.parse(code),this);
+};
+
+JavaScriptParser.prototype.createTree = function(tree) {
+	return new JavaScriptParseTree(tree,this);
+};
+
+exports.JavaScriptParser = JavaScriptParser;
+
+})();