public static String stripStart(String str, String stripChars) {
		int strLen;
		if (str == null || (strLen = str.length()) == 0) {
			return str;
		}
		int start = 0;
		if (stripChars == null) {
			while (start != strLen && Character.isWhitespace(str.charAt(start))) {
				start++;
			}
		} else if (stripChars.length() == 0) {
			return str;
		} else {
			while (start != strLen && stripChars.indexOf(str.charAt(start)) != INDEX_NOT_FOUND) {
				start++;
			}
		}
		return str.substring(start);
	}