JS - Allow scope binding for timer and setInterval

js-timer-scope-fix

/* JavaScript polyfill to fix scope issues with the setInterval */
var __nativeST__ = window.setTimeout, __nativeSI__ = window.setInterval;

window.setTimeout = function (vCallback, nDelay /*, argumentToPass1, argumentToPass2, etc. */) {
	var oThis = this, aArgs = Array.prototype.slice.call(arguments, 2);
	return __nativeST__(vCallback instanceof Function ? function () {
		vCallback.apply(oThis, aArgs);
	} : vCallback, nDelay);
};

window.setInterval = function (vCallback, nDelay /*, argumentToPass1, argumentToPass2, etc. */) {
	var oThis = this, aArgs = Array.prototype.slice.call(arguments, 2);
	return __nativeSI__(vCallback instanceof Function ? function () {
		vCallback.apply(oThis, aArgs);
	} : vCallback, nDelay);
};