code: static public String safeSqlQueryIntegerValue(String in) throws Exception {
  		int intValue = Integer.parseInt(in);
  		
  		return ""+intValue;
  	}
docs: This method converts a string into a new one that is safe for
  a SQL query. It deals with strings that are expected to be integer
  values.
  @param in Original string
  @return Safe string for a query.