sum = 2;
fib = new Array( 1, 2, 3 );
	while(fib[2] < 4000000)
{
	fib[2] = fib[0] + fib[1];
	if(fib[2] % 2 == 0)
		sum += fib[2];
	fib[0] = fib[1];
	fib[1] = fib[2];
}
console.log(sum );