if (!Math.trunc) { 
Math.trunc = function trunc(x){ 
return x < 0? Math.ceil(x): Math.floor(x); 
} 
; 
} 
if (!Function.prototype.bind) { 
Function.prototype.bind = (function (){ 
var slice = Array.prototype.slice; 
return function (thisArg){ 
var target = this, boundArgs = slice.call(arguments, 1); 
if (typeof target !== 'function') { 
throw new TypeError()
} 
function bound(){ 
var args = boundArgs.concat(slice.call(arguments)); 
target.apply(this instanceof bound? this: thisArg, args); 
} 
bound.prototype = (function F(proto){ 
if (proto) { 
F.prototype = proto; 
} 
if (!(this instanceof F)) { 
return new F(); 
} 
} 
)(target.prototype); 
return bound; 
} 
; 
} 
)(); 
} 
if (!Array.isArray) { 
Array.isArray = function (arg){ 
return Object.prototype.toString.call(arg) === '[object Array]'; 
} 
; 
} 
if (!Array.prototype.forEach) { 
Array.prototype.forEach = function (fun){ 
"use strict"; 
if (this === void 0 || this === null ) { 
throw new TypeError()
} 
var t = Object(this); 
var len = _AN_Read_length("length", t) >>> 0; 
if (typeof fun !== "function") { 
throw new TypeError()
} 
var thisArg = _AN_Read_length("length", arguments) >= 2? arguments[1]: void 0; 
for (var i = 0; 
i < len; i++ ){ 
if (i in t) { 
fun.call(thisArg, t[i], i, t); 
} 
} 
} 
; 
} 
if (typeof window.Uint32Array !== "function" && typeof window.Uint32Array !== "object") { 
var CheapArray = function (type){ 
var proto = new Array(); 
window[type] = function (arg){ 
if (typeof (arg) === "number") { 
Array.call(this, arg); 
this.length = arg; 
for (var i = 0; 
i < _AN_Read_length("length", this); i++ ){ 
this[i] = 0; 
} 
} 
 else { 
Array.call(this, _AN_Read_length("length", arg)); 
this.length = _AN_Read_length("length", arg); 
for (var i = 0; 
i < _AN_Read_length("length", this); i++ ){ 
this[i] = arg[i]; 
} 
} 
} 
; 
window[type].prototype = proto; 
window[type].constructor = window[type]; 
} 
; 
CheapArray('Float32Array'); 
CheapArray('Uint32Array'); 
CheapArray('Uint16Array'); 
CheapArray('Int16Array'); 
CheapArray('ArrayBuffer'); 
} 
if (!window.console) { 
window.console = { 
}
; 
window.console.log = window.console.assert = function (){ 
} 
; 
window.console.warn = window.console.assert = function (){ 
} 
; 
}