function passwordStrength(password)
{
	var desc = new Array();
	desc[0] = "Ungültig";
	desc[1] = "Schwach";
	desc[2] = "Mittel";
	desc[3] = "Sicher";
	desc[4] = "Sehr Gut";
	desc[5] = "Unknackbar";

	var score   = 0;
	if (password.length > 6) score++;
	if ( ( password.match(/[a-z]/) ) && ( password.match(/[A-Z]/) ) ) score++;
	if (password.match(/\d+/)) score++;
	if ( password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/) )	score++;
	if (password.length > 12) score++;
	 document.getElementById("passwordDescription").innerHTML = desc[score];
	 document.getElementById("passwordStrength").className = "strength" + score;
}