Simon sbrown345

sbrown345 / gist:5155089

Created March 13, 2013 19:05 — forked from Yaffle/gist:1287361

	function crc32(s/, polynomial = 0x04C11DB7, initialValue = 0xFFFFFFFF, finalXORValue = 0xFFFFFFFF/) {
	s = String(s);
	var polynomial = arguments.length < 2 ? 0x04C11DB7 : arguments[1],
	initialValue = arguments.length < 3 ? 0xFFFFFFFF : arguments[2],
	finalXORValue = arguments.length < 4 ? 0xFFFFFFFF : arguments[3],
	crc = initialValue,
	table = [], i, j, c;

	function reverse(x, n) {
	var b = 0;