if (!Array.prototype.indexOf){
	Array.prototype.indexOf = function(searchElement /*, fromIndex */){
		"use strict";

		if (this === void 0 || this === null) throw new TypeError();

		var t = Object(this);
		var len = t.length >>> 0;
		if (len === 0) return -1;

		var n = 0;
		if (arguments.length > 0){
			n = Number(arguments[1]);
			if (n !== n) n = 0;
			else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) n = (n > 0 || -1) * Math.floor(Math.abs(n));
		}

		if (n >= len) return -1;

		var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);

		for (; k < len; k++){
			if (k in t && t[k] === searchElement) return k;
		}
		return -1;
	};
}

if (!Array.prototype.forEach){
	Array.prototype.forEach = function(fun /*, thisp */){
		"use strict";

		if (this === void 0 || this === null) throw new TypeError();

		var t = Object(this);
		var len = t.length >>> 0;
		if (typeof fun !== "function") throw new TypeError();

		var thisp = arguments[1];
		for (var i = 0; i < len; i++){
			if (i in t) fun.call(thisp, t[i], i, t);
		}
	};
}

String.prototype.parseInt = function(){
	return parseInt(this);
}