var letters = "qwertyuiopasdfghjklzxcvbnm0123456789";
var symbols = "!@#$%^&*()-_+=";
var upperCases = "QWERTYUIOPASDFGHJKLZXCVBNM";

function generatePassword(charSet, masterKey, seed) {
	var generator = masterKey + seed;
	var builder = "";

	var passwordSize = 8 + Math.abs(generator.charCodeAt(0) % 4);
	for (var i = 0; i < passwordSize; i++) {
		var first = Math.abs((i - 30) % generator.length);
		var second = Math.abs((8 - i * i / 2 - 5) % generator.length);
		var index = Math.abs((generator.charCodeAt(first) * generator.charCodeAt(second)) % charSet.length);
		builder += charSet.charAt(index);
	}
	return builder;
}