String MyRightStr(String bigstr, String smstr) {
		int strlen = bigstr.length();
		int strpos = bigstr.indexOf(smstr);
		if (strpos == -1) {
			// not found - return nothing
			return "";
		} else {
			String resultstr = bigstr.substring(strpos + smstr.length(), strlen);
			return resultstr.trim();
		}
	}
	String MyLeftStr(String bigstr, String smstr) {
		int strpos = bigstr.indexOf(smstr);
		if (strpos == -1) {
			// not found - return nothing
			return "";
		} else {
			String resultstr = bigstr.substring(0, strpos);
			return resultstr;
		}
	}